Correct option: 2 Explanation: Eukaryotic cells do not possess mesosomes and fimbriae.
Q79) Sexual reproduction is absent in the membranes of _________ . 1. Deuteromycetes 2. Phycomycetes 3. Basidiomycetes 4. Ascomycetes
Correct option: 1 Explanation: Sexual reproduction is absent in the membranes of deuteromycetes. Deuteromycetes are also known as fungi imperfecta. Asexual reproduction may take place through...
Q78) The enzymes needed for Krebs cycle are located in ______ . 1. Oxysomes of mitochondria 2. Matrix of mitochondria 3. Cytoplasm of cell 4. Outer membrane of mitochondria
Correct option: 2 Explanation: The enzymes needed for Krebs cycle are located in matrix of mitochondria. The Krebs cycle enzymes are membrane proteins found within the matrix of the mitochondria.
Q77) Damage to VI cranial nerve in human, may affect the movements of ________ . 1. Neck 2. Jaw 3. Tongue 4. Eye
Correct option: 4 Explanation: Damage to VI cranial nerve in human, affects the movements of eye. Sixth nerve palsy is a condition that affects the eye movement. The main function of VI cranial...
Q76) The size of genome of Methanococcus jannaschii is ______ . 1. 1830 kb 2. 1660 kb 3. 569 kb 4. 12,500 kb
Correct option: 2 Explanation: The size of genome of Methanococcus jannaschii is 1660kb. The total amount of DNA contained in one copy of a single complete genome is referred to as a genome.
Q75) In Morgan’s experiment on Drosophilia cross between yellow bodied, white eyed female with wild type male gives ______ % of parental gene combination in F2 generation. 1. 37% 2. 1.3% 3. 62.8% 4. 98.7%
Correct option: 4 Explanation: In Morgan’s experiment on Drosophilia cross between yellow bodied, white eyed female with wild type male gives 98.7 % of parental gene combination in F2...
Q74) A man working in a furnace room suffered from asphyxiation. What should be the main reason? 1. More O2 level in the furnace room. 2. CO poisoning due to high CO level in the furnace room. 3. More O2 as well as fumes in the furnace room. 4. Less O2 level in the furnace room.
Correct option: 2 Explanation: The man suffered from asphyxiation because of CO poisoning due to high CO level in the furnace room. Carbon monoxide is a harmful gas that combines with haemoglobin to...
Q73) In plant breeding, biofortification is a method ______ . 1. To increase the nutritional value of crop plants. 2. To make the crop plants disease resistant. 3. To improve the yield of the crop plant.
Correct option: 1 Explanation: In plant breeding, biofortification is a method to increase the nutritional value of crop plants. Biofortification is a way by which the nutrients of the plants are...
Q72) Genetic material present in prokaryotes _______ is 1. Nucleosome 2. Nucleus 3. Nucleolus 4. Nucleoid
Correct option: 4 Explanation: nucleoid is the genetic material present in prokaryotes. It is an irregular shaped region present in the prokaryotes.
Q71) Norman Borlaug developed semi-dwarf varieties of wheat in _____ . 1. Mexico 2. USA 3. Philippines 4. India
Correct option: 1 Explanation: the Nobel Laureate , Norman E. Borlang at International Centre for Wheat and Maize Improvement in Mexico developed semi-dwarf varieties of wheat
Q70) The number of phenotypic and genotypic individuals produced during a typical Mendelian monohybrid cross will be ______ and _____ respectively. 1. 2 and 2 2. 3 and 2 3. 2 and 3 4. 3 and 3
Correct option: 3 Explanation: The number of phenotypic and genotypic individuals produced during a typical Mendelian monohybrid cross will be 2 and 3 respectively.
Q69) Select the incorrect statement 1. Hisardale is an example of cross-breeding experiment. 2. Genetic mother in MOET technique serves for multiple ovulation. 3. Apis mellifera and Apis florea domesticated species of honey bee. 4. Layers management includes processes like culling and debeaking.
Correct option: 3 Explanation: Apis mellifera and Apis florea are not domesticated species of honey bee
Q68) What is the percentage of methane in biogas? 1. 15 – 45 2. 91 – 95 3. 85 – 90 4. 50 – 80
Correct option: 4 Explanation: the percentage of methane in biogas is 50 – 80%. This percentage of methane in biogas is determined by Orsat apparatus gas-chromatography etc. We can also say that it...
Q67) The vector phage lambda is commonly used for gene transfer in ____ . 1. Plant cell 2. Yeast 3. Bacteria 4. Insect
Correct option: 3 Explanation: The vector phage lambda is commonly used for gene transfer in bacteria. Lambda phage consists of virus particle including a head, tall and tail fibers.
Q66) The product of syngamy in angiosperms is ________ . 1. Egg 2. PEN 3. Oopshere 4. Oospore
Correct option: 4 Explanation: oospore is the product of syngamy in angiosperms. It is a thick walled sexual spores. In syngamy two nuclei from each of the pollen tubes go on to fertilize two other...
Q65) Majority of kidney stones are formed by _____ . 1. Uric acid 2. Urea 3. Calcium oxalate 4. Cystine
Correct option: 3 Explanation: Majority of kidney stones are formed by calcium oxalate. Kidney stones are solid masses that form in the kidney, due to increased levels of calcium, oxalate, cystine...
Q64) Spinal cord is enclosed in _____ of vertebral column. 1. Neural canal 2. Volkman’s canal 3. Inguinal canal 4. Central canal
Correct option: 1 Explanation: Spinal cord is enclosed in neural canal of vertebral column. Spinal cord is a long bundle of nerves and cells that stretch from the lower portion of the brain to the...
Q63) The number of carbon atoms per molecule of citric acid, oxaloacetic acid and pyruvic acid respectively are ______ . 1. 4, 6 and 3 2. 6, 4 and 3 3. 6, 3 and 2 4. 4, 4 and 3
Correct option: 2 Explanation: The number of carbon atoms per molecule of citric acid, oxaloacetic acid and pyruvic acid respectively are 6, 4 and 3. Pyruvic acid is a 3 carbon compound,...
Q62) In recombinant DNA technology after the bacteriophage infects a bacterial cell, plaques are formed by the _____ . 1. New colonies of bacterial cells 2. Infecting bacteriophages 3. Lysed bacterial cells 4. Virions
Correct option: 3 Explanation: In recombinant DNA technology after the bacteriophage infects a bacterial cell, plaques are formed by the lysed bacterial cells. Plaques are clear zones formed in a...
Q61) which phytochrome promotes seed germination in cereals by synthesizing amylase enzyme? 1. Gibberellin 2. Abscisic acid 3. Auxin 4. Cytokinin
Correct option: 1 Explanation: gibberellin promotes seed germination in cereals by synthesizing amylase enzyme. Gibberellins cause seed germination by breaking the dormancy of the seed and acts as a...
Q59) High aspartic acid. Low nitrogen and sugar content in maize variety makes it resistant to _____ . 1. Leaf curl 2. Black rot 3. Stripe rust 4. Stem border
Correct option: 4 Explanation: maize plant exhibits an example of development of pest resistant because of the biochemical characters. Low nitrogen, sugar and high aspartic acid impart the plants...
Q58) In the process of digestion, lipids present in oily and fried foods are digested and split into _____ and ____ . 1. Fatty acids and glycerol 2. Glucose and glycerol 3. Fatty acids and amino acids 4. Glucose and amino acids
Correct option: 1 Explanation: In the process of digestion, lipids present in oily and fried foods are digested and split into fatty acids and glycerol. The enzyme lipase breaks the fat into fatty...
Q57) Match the column I with column II and select the correct option. Column I Column II A. Tidal volume i) 2500-3000 ml B. Inspiratory reserve volume ii) 1000 ml C. Residual volume iii) 4500 ml D. Vital capacity iv) 500 ml 1. A- iii, B- iv, C-i, D-ii 2. A- ii, B- iii, C-iv, D-i 3. A- iv, B- i, C-ii, D-iii 4. A- iv, B- ii, C-iii, D-i
Correct option: 3 Explanation: Normal tidal volume in human beings is 500 ml. Inspiratory reserve volume is 2500 – 3000 ml. It is defined as the amount of air that can be forcibly inhaled after a...
Q56) Which one of the following heavy metals in water is responsible to cause haemolysis, diarrhoea, abdominal and chest pain in humans? 1. Selenium 2. Arsenic 3. Mercury 4. Lead
Correct option: 3 Explanation: chronic mercury poisoning can cause diarrhea, chest pain, abdominal pain, nausea, hemolysis, vomiting, and many more symptoms have been seen.
Q55) Photosynthetic organisms which lack chlorophyll-a are _____ . 1. Vascular plants 2. Algae 3. Photosynthetic bacteria 4. Bryophytes
Correct option: 3 Explanation: Photosynthetic bacteria donot have chlorophyll to absorb light. Instead they have bacteriochlorophyll, which can absorb short wavelengths of light than the...
Q54) Grafting is not possible in monocots because they do not possess ____ . 1. Branches 2. Buds 3. Apical meristem 4. Cambium
Correct option: 4 Explanation: monocots cannot be grafted as they donot have cambium tissue. The dicot plants have cambium tissue which is a meristematic tissue found in the vascular bundles of the...
Q53) Select the correct statement with reference to AIDS. 1. It spreads through contact with HIV infected person. 2. It is easily curable. 3. Patients called non-progressors develop AIDS very slowly or never at all. 4. It is transmitted through insect bite.
Correct option: 3 Explanation: AIDS also known as human immunodeficiency syndrome. It interferes with the capacity of the body to fight against the infections. It is not easily curable and not...
Q52) Inflammation of alveoli, consolidation in lungs, are characteristics of ____ disease. 1. Malaria 2. Amoebiasis 3. Filariasis 4. Pneumonia
Correct option: 4 Explanation: Pneumonia is an infection that inflames the air sacs on one or both the lungs. It is the most common cause for consolidation in the lungs.
Q51) The ________ brings about dilation of blood vessels? 1. Histamine 2. Gastrin 3. Elastin 4. Heparin
Correct option: 1 Explanation: when histamine is released from its granules it causes dilation of blood vessels, which increases the permeability and the blood pressure is lowered.
Q50) Which one of the following lichens are used to obtain usnic acid? 1. Usnea and Cladonia 2. Evernia and Ramalina 3. Rocella and Lassalia 4. Usnea and Citraia
Correct option: 1 Explanation: Usnea and Cladonia are used to obtain usnic acid.
Q49) Which one of the following blood vessels carry oxygenated blood? 1. Coronary sinus 2. Coronary artery 3. Pulmonary artery 4. Coronary vein
Correct option: 2 Explanation: Coronary artery carries oxygenated blood to the heart muscle. Cardiac veins drain away the blood after it has been deoxygenated.
Q48) Wine and beer are produced without _________ . 1. Distillation 2. Malting 3. Fermentation 4. Mashing
Correct option: 1 Explanation: Wine and beer are produced without distillation. They are produced by fermentation, as distillation increases the alcohol content in the drink.
Q47) Which one of the following animal has longer loop of Henle? 1. Camel 2. Rat 3. Monkey 4. Labeo
Correct option: 1 Explanation: Camel has long loop of Henle. Desert animals do not find water easily, so they excrete less amount of water. Longer the henle’s loop, mor ethe solute will be...
Q46) Which one of the following is a heteropolysaccharide? 1. Cellulose 2. Starch 3. Glycogen 4. Hyaluronic acid
Correct option: 4 Explanation: Hyaluronic acid is a heteropolysaccharide. Heteropolysaccharides are polysaccharides whose molecules are composed of various types of monosaccharides
Q45) Gaurav visited a zoo where he saw tiger, lion. Camel, musk deer, red fox, one-horned rhinoceros, great Indian bustard and peacock. He wanted to report the endangered species from the above list/The numbers will be ___________ 1. 3 2. 4 3. 5 4. 8
Correct option: 2 Explanation: The correct number of endangered species is 4. One horned rhino, huge Indian Bustard, Red fox, and musk deer are all endangered species, Species that are in grave...
Q44) Which one of the following is cause of inflammation of cornea, called snow blindness cataract? 1. The gamma rays 2. High dose of cosmic rays 3. High dose of UV-B rays. 4. The infrared rays.
Correct option: 3 Explanation: High dose of UV-B rays causes inflammation of cornea, called snow blindness cataract. Snow blindness is a painful, temporary loss of vision because of overexposure to...
Q43) Proximal convoluted tubule differs from distal convoluted tubule being lined by ___. 1. Squamous cells with few microvilli 2. Squamous cells with many microvilli 3. Cuboidal cells with few microvilli 4. Cuboidal cells with many microvilli
Correct option: 4 Explanation: Proximal convoluted tubule differs from distal convoluted tubule by being lined by Cuboidal cells with many microvilli. PCT is lined by brush border cuboidal cells...
Q42) Breasts are the modified ________ glands. 1. Sebaceous 2. Ceruminous 3. Sweat 4. Vestibular
Correct option: 3 Explanation: Breasts are the modified sweat glands. Functionally mammary glands produce milk, but structurally they are modified sweat glands.
Q41) Select the correct statement. 1. The ovum secretes antifertilizin 2. The sperm secretes antifertilizin. 3. The zygote secretes fertilizin. 4. The sperm secretes fertilizin
Correct option: 2 Explanation: The sperm secretes antifertilizin. An antifertilizin is an acidic protein secreted by the plasma membrane of the sperm.
Q40) Empirical formula of chlorophyll -a is _________ . 1. C55H72O4N5Mg 2. C72H55O5N4Mg 3. C55H70O5N4Mg 4. C55H72O5N4Mg
Correct option: 4 Explanation: Empirical formula of chlorophyll -a is C55H72O5N4Mg. The chlorophyll molecule consists of a central magnesium atom surrounded by a nitrogen containing structure called...
Q39) Excessive haemolysis of RBCs with over production of bilirubin and abnormal function of _______ is observed in jaundice. 1. Lungs 2. Heart 3. Liver 4. Stomach
Correct option: 3 Explanation: Excessive haemolysis of RBCs with over production of bilirubin and abnormal function of liver is observed in jaundice.
Q38) Select the incorrect statement 1. female bird is heterogametic 2. holandric genes are present on n0n-homologous region of Y chromosome. 3. Queen bee and worker bees have haploid number of chromosomes. 4. Father is responsible for sex of the child in human beings.
Correct option: 3 Explanation: Queen bee and worker bees do not have haploid number of chromosomes. Queen bee and worker bees have diploid number of chromosomes.
Q37) Internal valves are present in the ________ . 1. Arterioles 2. lymphatic vessels 3. vascular capillaries 4. lymph capillaries
Correct option: 2 Explanation: Internal valves are present in the lymphatic vessels. These valves prevent backflow of fluid, so that lymph flows forward and not falls backward.
Q36) Taq polymerase isolated from Thermus aquaticus can withstand temperature up to ________ . 1. 84°C 2. 91°C 3. 94°C 4. 60°C
Correct option: 3 Explanation: Taq polymerase isolated from Thermus aquaticus can withstand temperature up to 94°C. It is so because this much temperature is needed for DNA strand separation without...
Q35) Hydra and yeast reproduce asexually by _________ . 1. Binary fission 2. Budding 3. Zoospores 4. Conidia
Correct option: 2 Explanation: Hydra and yeast reproduce asexually by budding. Formation of a bud takes place on the body of hydra and cells of yeast. It grows and when reaches a specific size it...
Q34) Match the process in column I with its explanation in column II and select the correct option. Column I column II i) Symport a) shrinking of protoplasm in a plant cell when placed in hypertonic solution. ii) Facilitated diffusion b) transport of two types of molecules in same direction across cell membrane iii) Antiport c) selective transport of molecules across the membrane through proteins iv) Plasmolysis d) selective transport of molecules in opposite direction across cell membrane 1. (i) – a, (ii) – d, (iii) – c, (iv) – b, 2. (i) – b, (ii) – c, (iii) – d, (iv) – a, 3. (i) – b, (ii) – a, (iii) – c, (iv) – d, 4. (i) – b, (ii) – a, (iii) – c, (iv) – d,
Correct option: 2 Explanation: Symport means transport of two types of molecules in the same direction across cell membrane. Facilitated diffusion is selective transport of molecules across the...
Q33) In ornithophilous plants, flowers lack ______ . 1. Sticky pollen grains 2. Nectar 3. Bright color 4. Fragrance
Correct option: 4 Explanation: In ornithophilous plants, flowers lack fragrance. Such flowers secrete profuse dilute nectar. They do not have any smell as birds have a poor sense of smell.
Q32) Mortality of a region is assesses by ______ individuals per unit area per unit time. 1. Births 2. Immigration 3. Emigration 4. Deaths
Correct option: 4 Explanation: Mortality of a region is assesses by deaths individuals per unit area per unit time. The number of fatalities in a given area per unit of time is referred to as...
Q31) In a population of an organism, allele A has the frequency of 0.7 and allele a has the frequency of 0.3 . What is the frequency of homozygous dominant allele? 1. 0.49 2. 0.14 3. 1.4. 4. 4.9
Correct option: 1 Explanation: The frequency of homozygous dominant allele will be 0.49
Q30) Which of the following is not involved in glycolysis? 1. Release of water 2. Utilization of ATP 3. Formation of ATP 4. Release of CO2
Correct option: 4 Explanation: Release of CO2 is not involved in glycolysis. Glycolysis takes place in cytoplasm, and produces 2ATP and 6NADH.
Q29) With reference to human beings, find out the mis-match pair. 1. Insemination – discharge of semen into the vagina of a female. 2. Implantation – setting of zygote in the endometrium uterus 3. Menopause – total arrest of menstrual cycle forever. 4. Menarche – beginning of menstrual cycle for the first time in life
Correct option: 1 Explanation: Implantation is the attachment of the fertilized egg to the uterine lining. The zygote usually implants at the top of the uterus, near where it exits the fallopian...
Q28) Gargi constructed m-RNA in laboratory. Which of the following codons will she have as initiating and terminating the m-RNA respectively. 1. AUG – UAG 2. GUG – UAC 3. UAC – AUG 4. AUG – UCA
Correct option: 1 Explanation: AUG – UAG will be the codons as initiating and terminating the m-RNA respectively.
Q27) Cretaceous, Jurassic and Triassic periods are included in the _______ era. 1. Palaeozoic 2. Mesozoic 3. Proterozoic. 4. Cenozoic
Correct option: 2 Explanation: Cretaceous, Jurassic and Triassic periods are included in the Mesozoic era. Mesozoic means middle life and this is the time of the dinosaurs. During this era, the land...
Q26) Match the correct phenotype and genotype of Drosophilia for their wing sizes. Phenotype Genotype i) Normal wings a) vgno ii) Nicked wings b) vg iii) Notched wings c) vg+ iv) Strap wings d) vgst v) Vestigial wing e) vgni 1. (i)-e, (ii)-d, (iii)-c, (iv)-b, (v)-a 2. (i)-a, (ii)-b, (iii)-c, (iv)-d, (v)-e 3. (i)-d, (ii)-a, (iii)-b, (iv)-e, (v)-c 4. (i)-c, (ii)-e,MHCET(iii)-a, (iv)-d, (v)-b
Correct option: 4 Explanation: In Drosophilia normal wings are related to vg+( vestigial wings ). In Drosophilia nicked wings are related to vgni In Drosophilia notched wings are related to vgno In...
Q25) Lemurs are found in ________ . 1. Central America 2. East Indies 3. Madagascar 4. South Africa
Correct option: 3 Explanation: Lemurs are primates present mainly on the African island of Madagascar. Lemurs include monkeys, apes, and humans.
Q24) With reference to agricultural crop, which of the following are considered as critical elements? 1. Mg, Fe, Zn 2. C, H, O 3. N, P, K 4. Mn, Cl, Ca
Correct option: 3 Explanation: N, P, K are considered as critical elements. NPK, are big 3 primary nutrients in commercial fertilizers. Nitrogen is considered to be the most important nutrient.
Q23) Water present in the form of hydrated oxides of silicon and aluminum in soil is called ______ water. 1. Gravitational 2. Capillary 3. Hygroscopic 4. Combined
Correct option: 4 Explanation: Water present in the form of hydrated oxides of silicon and aluminum in soil is called combined water. The water chemically combined in the structure of soil minerals...
Q22) A 22 year old girl is about to face interview. She is restless, is sweating and her heart beats have increased. These symptoms are due to increases secretion mainly of ________ . 1. Thymosins 2. Catecholamines 3. Aldosterone 4. Androgens
Correct option: 2 Explanation: The symptoms are due to increases secretion mainly of catecholamine. Catecholamines are group of similar substances released into the blood in response to physical or...
Q21) The dead leucocytes are destroyed in the following organs/ fluid except _______ . 1. Spleen 2. Lymph node 3. Blood 4. Liver
Correct option: 1 Explanation: The dead leucocytes are destroyed in the following organs/ fluid except spleen. Spleen is the part of the lymphatic system, which fight against infections and balances...
Q20) In angiospermic flowers, the filament of stamen is attached to the anther by _______ . 1. Placenta 2. Hilum 3. Funicle 4. Connective
Correct option: 4 Explanation: In angiospermic flowers, the filament of stamen is attached to the anther by connective. The sterile tissue between the lobes is called the connective, an extension of...
Q19) Who postulated three laws that known as Mendel’s law of inheritance based on Mendel’s findings? 1. Hugo De Vries 2. Karl Correns 3. Johannsen 4. Erich Tschermak
Correct option: 2 Explanation: Karl Correns postulated three laws, known as Mendel’s law of inheritance based on Mendel’s findings. Mendel’s law of inheritance consists of law of dominance, law of...
Q18) The subaerial branch which creeps horizontally on soil helps in vegetative propagation is called _______ . 1. Runner 2. Offset 3. Stolon 4. Sucker
Correct option: 4 Explanation: Sucker is the subaerial branch which creeps horizontally on soil helps in vegetative propagation. Sucker is present in plant as the modified stems.
Q17) Which one of the following is not characteristics of plasmid? 1. Help bacteria survive and reproductive under unfavorable conditions 2. Double stranded 3. Self- replicating 4. Heredity material of bacterium
Correct option: 4 Explanation: Heredity material of bacterium is not a characteristics of plasmid. Plasmid are extrachromosomal circular DNA molecules which are not part of the bacterial genome.
Q16) Match the column I with column II and select the correct option. Column I column II a) Female banded krait i) Humulin b) Pancreas from dog ii) DNA sample c) Hair root of human iii) insulin extracted and purified d) E.coli iv) DNA probe 1. a-i b-ii c-iv d-iii 2. a-ii b-I c-iii d-iv 3. a-iii b-iv c-ii d-i 4. a-iv b-iii c-ii d-i
Correct option: 4 Explanation: A segment of DNA was isolated from sex determining Y chromosome of female banded krait, an Indian poisonous snake. Insulin extracted from dog must be purified to...
Q15) The shortest phase of cardiac cycle is ______ . 1. Joint cardiac diastole 2. Ventricular systole 3. Atrial diastole 4. Atrial systole
Correct option: 4 Explanation: The shortest phase of cardiac cycle is atrial systole. The atrial systole is the last phase of a diastole during which the ventricular filling is completed.
Q14) Proteins attached with a prosthetic group are called ________ proteins. 1. Structural 2. Simple 3. Contractile 4. Conjugated
Correct option: 4 Explanation: Proteins attached with a prosthetic group are called conjugated protein. A conjugated protein is defined as a protein to which another chemical group is attached by...
Q13) What is true about C4 plants _______ . 1. C3 pathway reactions take place in bundle sheath chloroplast and C4 pathway reactions in mesophyll chloroplast. 2. Both reactions occur in mesophyll chloroplast. 3. Both reactions occur in bundle sheath chloroplast. 4. C3 pathway reactions take place in mesophyll chloroplast and C4 pathway reactions in bundle sheath chloroplast.
Correct option: 1 Explanation: In C4 plants, C3 pathway reactions take place in bundle sheath chloroplast and C4 pathway reactions in mesophyll chloroplast. In C4 plants, photosynthesis takes place...
Q12) Fructose is contributed to the semen by ____ . 1. Seminal vesicles 2. Testis 3. Prostate gland 4. Cowper’s gland
Correct option: 1 Explanation: Fructose is contributed to the semen by seminal vesicles. Fructose is the primary source of energy for the spermatozoa within the ejaculate. Seminal vesicles produces...
Q11) Specialized cells that are sensitive to vibration, pain and tension are called ______ . 1. Proprioceptors 2. Baroreceptors 3. Statoacoustic receptors 4. Frigidoreceptors
Correct option: 1 Explanation: Proprioceptors are specialized cells that are sensitive to vibration, pain, and tension. Proprioceptors are sensory receptors placed in the subcutaneous tissues. They...
Q10) What will be the genotype of a carrier individual who shows sickle cell anaemic trait? 1. HbB HbB 2. HbA HbS 3. HbS HbS 4. HbA HbA
Correct option: 4 Explanation: The genotype of a carrier individual who shows sickle cell anemic trait will be HbA HbA . A person with sickle cell trait inherits one normal allele and one...
Q9) The average life span of blood platelets is _____ days. 1. 3 – 4 2. 1 – 3 3. 11 – 15 4. 5 – 10
Correct option- 4 Explanation: The average life span of blood platelets is 5 – 10 days. Bone marrow residing megakaryocytes produce approximately 100 billion platelets per day.
Q8) The figure given below is T.S. of Azolla leaf, the filaments present in the cavity of the leaf are of _________ 1. Nostoc 2. Tolypothrix 3. Anabaena 4. Oscillatoria
Correct option- 3 Explanation: The filaments present in the cavity of the leaf are of anabaena. Anabaena are genus of nitrogen-fixing blue-green algae. They have beadlike or barrel shaped cells
Q7) Following are prokaryotic cells except _______. 1. Anabaena 2. Streptococcus 3. Nostoc 4. Paramecium
Correct option- 4 Explanation: Paramecium is not a prokaryotic cell, as it is a eukaryote. It has well-organized cells.
Q6) How many base pairs are present in a segment of m-RNA having 100 nucleotides? 1. 100 2. 50 3. 00 4. 25
Correct option- 3 Explanation: There are four nitrogenous bases in RNA: adenine, cytosine, uracil and guanine. 00 base pairs are present in a segment of m-RNA having 100 nucleotides
Q5) A molecule of chlorophyll which acts as reaction centre in pigment system II 1. P-650 2. P-700 3. P-673 4. P-680
Correct option- 4 Explanation: P-680 or photosystem II primary donor, is the reaction center chlorophyll a molecular diner associated with photosystem II in plants algae and cyanobacteria
Q3) The process of non-cyclic photophosphorylation occurs in ________. 1. Aerobic conditions, high CO2 conc. And low light intensity. 2. Anaerobic conditions, high CO2 conc. and enough light intensity. 3. Aerobic conditions, high CO2 conc. and enough light intensity. 4. Aerobic conditions, low CO2 conc. and enough light intensity.
Correct option- 3 Explanation: In the process of photosynthesis, the phosphorylation of ADP to form ATP by using the energy of sunlight is known as photophosphorylation.
Q2) Which one of the following molecule is not needed during translation in protein synthesis? 1. m-RNA 2. DNA 3. R-RNA 4. T-RNA
Correct option- 2 Explanation: DNA is not needed during translation in proteins. The work for DNA is to store information in the nucleus and function as the template
Q1) Match the column I with column II and select the correct option. Column I column II A. Fibrinogen i) contractions in female reproductive tract B. Fructose ii) prevent fungal infection C. Prostaglandins iii) coagulation of semen D. Lactobacilli in vagina iv) source of energy 1. A(ii), B-(iii), C(iv), D(i) 2. A-(i), B(ii), C(iii), D(iv) 3. A(iii), B(iv), C(i), D(ii) 4. A(iv), B(i), C(ii), D(iii)
Solution: correct option – 3 Explanation: Fibrinogen helps in the coagulation of semen after ejaculation. Fructose is a source of energy. Prostaglandins help in contractions in the female...
Q100. Heaviness with severe chest pain which may disappear with rest indicates A) Angina pectoris B) Atherosclerosis C) Arteriosclerosis D) Hyperthyroidism
Correct option: A Explanation: Heaviness with severe chest pain which may disappear with rest indicates Angina Pectoris. It is a type of chest pain resulting because of decrease in blood flow to...
Q99. The increase in blood flow to heart stimulates secretion of A) Renin B) Oxytocin C) Antidiuretic hormone D) Atrial natriuretic factor
Correct option: D Explanation: The increase in blood flow to heart stimulates secretion of Atrial natriuretic factor. It is a protein hormones secreted by cardiac myocyte cells. Its function is the...
Q98. Which of the following animal was selected by Morgan for studying linkage ? A) Apis indica B) Agrobacterium tumafaciens C) Drosophila melanogaster D) E. Coli
Correct option: C Explanation: Drosophila melanogaster animal was selected by Morgan for studying linkage. He showed how sexual reproduction gave rise to variations.
Q97. The marine fish among the following varieties is A) Stromateus B) Labeo C) Cirrhina D) Catla
Correct option: A Explanation: Salt water fish are called as marine fish are those which live in ocean. Stromateus is a marine fish.
Q96. Juxta glomerular cells of kidney secrete hormone A) Angiotensinogen B) Angiotensin II C) Coherin D) Renin
Correct option: D Explanation: Renin is an enzyme secreted by the juxta glomerular cells of the kidney. Renin is secreted in response to stimulation of beta-1-adrenergic response.
Q95. Epicanthal skin fold and simian crease are characteristics of A) Down’s syndrome B) Klinefelter’s syndrome C) Thalassemia D) Turner’s syndrome
Correct option: A Explanation: Down syndrome is an autosomal condition which is characterized by outward slanting eyes that have an additional skin fold on the upper eyelid recognized as an...
Q94. Helper T – cells : Lymphokines as Killer T – cells : _____ A) Interferons B) Lysozymes C) Perforins D) Prostaglandins
Correct option: C Explanation: As lymphokines are protein mediators produced by T cells to direct the immune system response by signaling between its cell. Killer T cells carry out their killing...
Q93. Ectoderm gives rise to A) cornea, heart, bronchi, dentine B) adrenal cortex, tongue, liver, retina C) lungs, adrenal medulla, dermis, thyroid D) enamel of teeth, nails, adrenal medulla, hair
Correct option: D Explanation: Ectoderm gives rise to enamel of teeth, nails, adrenal medulla. Ectoderm is a germ layer, formed in an animal embryo during developmental stages. It is one of the...
Q92. The Human Genome Project (HGP) was initiated in A) 1988 B) 1990 C) 1992 D) 1994
Correct option: B Explanation: the human genome program was initiated in 1990. The program refers to thirteen year effort, which began in 13 October 1990 and completed in2003.
Q91. A Red list of endangered species is maintained by A) CSIR B) IUCN C) NEERI D) WLS
Correct option: B Explanation: IUCN (international union for conservation of nature) maintains a list of endangered species. It uses a set of quantitative criteria to evaluate the extinction risk of...
Q90. Choose the CORRECT group of labellings A) I – Trophoblast, II – Archenteron, III – Micromeres B) I – Trophoblast, II – Blastocoel, III – Megameres C) I – Trophoblast, II – Archenteron, III – Inner mass cells D) I – Trophoblast, II – Blastocoel, III – Inner mass
Correct option: D Explanation: The trophoblast is the outer layer of the blastocyst consisting of cells. It surrounds the inner cell mass and a fluid-filled cavity known as blastocoel.
Q89) Match the following : i. Mercury a. Low blood pressure, blindness ii. Lead b. Hyperkeratosis, Liver cirrhosis iii. Arsenic c. Bone deformation, testicular atrophy iv. Cadmium d. Abdominal pain, haemolysis e. Anaemia, convulsions A) i-e, ii-d, iii-c, iv-b B) i-d, ii-e, iii-b, iv-c C) i-c, ii-b, iii-d, iv-a D) i-b, ii-c, iii-d, iv-e
Correct option: B Explanation: Mercury if ingested causes abdominal pain. Lead causes anaemia and convulsions. Excessive intake of arsenic leads to liver cirrhosis. Cadmium causes abdominal leads to...
Q88) The Transgenic animals are generally produced for all of the following needs except A) Testing of chemical safety B) Testing of vaccine safety C) Stimulation of pathogenicity D) Production of pharmacologically important Proteins
Correct option: C Explanation: The Transgenic animals are generally produced for all of the following needs except for stimulation of pathogenicity. The transgenic animals are used for numerous...
Q87) Select the CORRECT identification group of labelled parts I, II and III A) I – Scala vestibuli, II – Scala media, III – Scala tympani B) I – Scala vestibuli, II – Scala tympani, III – Scala media C) I – Scala tympani, II – Scala media, III – Scala vestibuli D) I – Scala media, II – Scala tympani, III – Scala media
Correct option:A Explanation: Scala vestibuli, Scala media, and Scala tympani are located in the cochlea.
Q86) The reptiles, like dinosaurs were dominant in _____ period. A) Cretaceous B) Jurassic C) Tertiary D) Triassic
Correct option: B Explanation: The reptiles, like dinosaurs were dominant in Jurassic period. Jurassic is a geologic period
Q85) Find the CORRECT match : Column A Column B Column C i. Mackeral Rastrelliger Freshwater fish ii. Honey bee Apis Wax iii. Mirgala Tacchardia Marine waterfish iv. Silkworm Bombyx Mulberry silk A) ii and iv B) i and ii C) iv only D) i and III
Correct option: A Explanation: The honey bee is an insect within the genus Apis. Their produce was also known as beeswax. Silkworm belongs to the genus Bombyx and produces mulberry silk.
Q84) In the given diagram I and II indicate A) Chromomere and chromonemata B) Centromere and secondary constriction C) Secondary constriction and satellite D) Telomere and satellite
Correct option: D Explanation: I and II indicate Telomere and satellite. Telomere is the end of chromosome and are made of repetitive sequencing of non-coding DNA.
Q83) The glycoprotein, fertilizin is secreted by Ovum B) Ovary C) Sperm D) Testis
Correct option: A Explanation: The glycoprotein, fertilizin is secreted by ovum. Fertilizin is secreted by ovum, which forms egg water and attracts the sperms of its own species.
Q82) Deposition of _______ in the joints causes gout. A) Urea B) Uric acid C) Guanine D) Ammonia
Correct option: B Explanation: Deposition of uric acid in the joints causes gout. Gout is a disorder characterized by deposition of the uric acid crystals. This increases the pain and inflammation...
Q81) The characters such as pointed elongated snout, strong and stout forelimbs, well developed claws are observed in ………… adaptation. A) Arboreal B) Aerial C) Cursorial D) Fossorial
Correct option: D Explanation: The characters such as pointed elongated snout, strong and stout forelimbs, well developed claws are observed in fossorial adaptation. Fossorial adaptation refers to...
Q80) A cuckoo laying eggs in the nest of other species of birds, is an example of A) Adelphoparasitism B) Broodparasitism C) Ectoparasitism D) Hyperparasitism
Correct option: B Explanation: A cuckoo laying eggs in the nest of other species of birds, is an example of Brood parasitism. Brood parasites are organisms who rely on others to raise their young...
Q79) Which is NOT the function of lymph ? A) Transport R.B.C.s B) Drain excess tissue fluid C) Transport lymphocyte and antibodies D) Transport absorbed fat
Correct option: A Explanation: Transportation of R.B.C.s is not the function of lymph. R.B.C.s are a type of blood cells whose role is to transport oxygen from lungs to the body.
Q78) Pick the ODD homologous pair out. A) Bartholin’s Gland – Cowper’s Gland B) Clitoris – Penis C) Mons pubis – Glans penis D) Labia majora – Scrotum
Correct option: C Explanation: Mons pubis – Glans penis is the odd homologous pair. Mons pubis structure corresponds to shaft in male and not to glans penis.
Q77) More than 95 % of transgenic animals are A) Rabbits B) Mice C) Fish D) Cows
Correct option: B Explanation: More than 95 % of transgenic animals are mice. Transgenic animals are those that carries a foreign gene which has been deliberately injected into its genome.
Q76) Following are all breeds of cows EXCEPT A) Jersey B) Nagpuri C) Sahiwal D) Sindhi
Correct option: B Explanation: Nagpuri is not a breed of cow. It is a breed of buffalo which originates in Maharashtra.
Q75) Which are the phagocytic cells from given diagram? A) I and V B) I and III C) I and IV D) I and II
Correct option: A Explanation: I and V are the phagocytic cells. Phagocytic cells are the cells which have the capacity to ingest foreign particles.
Q74) The first vaccine produced by Edward Jenner, was for protection against A) Hepatitis B) Influenza C) Chicken pox D) Small pox
Correct option: D Explanation: The first vaccine produced by Edward Jenner, was for protection against small pox. The vaccine was developed in 1796. The vaccine lead to global eradication of small...
Q73) How many pairs of sympathetic ganglia are present in ANS? A) 10 B) 12 C) 22 D) 31
Correct option: C Explanation: 22 pairs of sympathetic ganglia are present in ANS. There are 22 pairs of ganglia: 3 in cervical region, 11 in thoracic region, 4 in lumbar region and 4 in the sacral...
Q71) Morula formed at the end of cleavage is ______ celled. A) 14 B) 16 C) 18 D) 20
Correct option: B Explanation: Morula formed at the end of cleavage is 16 celled. The zygote divides mitotically by cleavage process. Cleavage continues till a solid ball of cells called as morula...
Q70) Serotonin and Melatonin are hormones, secreted by A) Pancreas B) Pineal body C) Pituitary gland D) Thymus
Correct option: B Explanation: Pineal body secretes Serotonin and Melatonin hormones. Pineal gland is an endocrine gland. The hormone produced by it modulated the pattern of the sleep.
Q69) Which of the following options are CORRECT ? 1. Heroin – Stimulant 2. Marijuana – Cardiovascular 3. Cocaine – Hallucinations 4. Morphine – Sedative A) 1, 2 and 3 B) 1, 3 and 4 C) 2, 3 and 4 D) 1, 2 and 4
Correct option: C Explanation: . Marijuana – Cardiovascular: marijuana smoking increases the risk of cardiovascular diseases. Cocaine – Hallucinations: excessive usage of cocaine causes...
Q68) The first fossil of Australopithecus was discovered in A) Olduvai Gorge, Tanzania B) Fayum deposits of Egypt C) Siwalik hills in India D) Taung in South Africa
Correct option: D Explanation: The first fossil of Australopithecus was discovered in Taung in South Africa. The fossil was of an immature apelike individual.
Q67) Find the odd one out, with respect to X-linkage. A) Haemophilia B) Myopia C) Nephritis D) Night blindness
Correct option: C Explanation: Nephritis is the odd one with respect to X-linkage.
Q66) One of the following cells secretes a hormone A) Cells of Leydig B) Cells of Sertoli C) Primary spermatocyte D) Secondary spermatocyte
Correct option: A Explanation: Cells of Leydig secretes hormone named as testosterone. These cells are placed in the connective tissue that holds the tubules together in each lobule.
Q65) Atrial Natriuretic Factor (ANF) decreases A) Blood pressure B) Secretion of renin C) Na+ excretion D) Vasodilation
Correct option: A Explanation: Atrial Natriuretic Factor (ANF) decreases the blood pressure. It decreases the blood pressure by dilating the blood vessels.
Q64) Select the CORRECT match : A) Gibbon – Cercopithecoidea B) Lemur – Prosimians C) New World Monkey – Hominoidea D) Tarsier – Anthropoidea
Correct option: B Explanation: Prosimians are group of primates including all living and extinct strepsirrhines (lemurs, lorisoids, and adapiforms), the haplorrhine tarsiers and their extinct...
Q63) The clot formation can be prevented by treatment with ________ in gene therapy. A) DNase B) Recombinant vaccine C) TPA D) TGF-B
Correct option: C Explanation: The clot formation can be prevented by treatment with TPA in gene therapy. TPA (tissue plasminogen activator) is a clot dissolving enzyme that is produced by the...
Q62) Match the pairs of diseases and pathogens : I II 1. Malaria a. Wuchereria bancrofti 2. Filariasis b. Helminth 3. Typhoid c. Plasmodium falciparum 4. Schistosomiasis d. Salmonella typhi A) 1-c, 2-b, 3-a, 4-d B) 1-d, 2-a, 3-b, 4-c C) 1-a, 2-b, 3-c, 4-d D) 1-c, 2-a, 3-d, 4-b
Correct option: D Explanation: Malaria is caused by Plasmodium falciparum. Filariasis is caused by Wuchereria bancrofti. Typhoid is caused by Salmonella typhi Schistosomiasis is caused by...
Q60) During ovulation, the ovary releases A) Oogonia B) Ootid C) Primary oocyte D) Secondary oocyte
Correct option: D Explanation: Secondary oocyte are released by the ovaries during ovulation. After 12 to 14 days. The follicle gets mature and bursts open, releasing the secondary oocyte from the...
Q59) Darwin’s theory of Evolution CANNOT explain A) Arrival of fittest B) Natural selection C) Prodigality of production D) Struggle for existence
Correct option: A Explanation: Darwin’s theory of natural selection can explain survival of the fittest, but it cannot explain arrival of the fittest.
Q58) Plasma cells are derived from A) Cytotoxic T – cells B) Helper T – cells C) Memory B – cells D) Memory T – cells
Correct option: C Explanation: Memory B – cells gives rise to plasma cells. Memory B cells rapidly proliferate and differentiate into plasma cells.
Q57) The study of blood vessels is termed as A) Angiology B) Cardiology C) Haematology D) Histology
Correct option: A Explanation: Angiology is the study of blood vessels. It is related to the study of diseases of the circulatory system and lymphatic system.
Q56) All of the following animals are ureotelic EXCEPT A) Frog B) Snake C) Turtle D) Toad
Correct option: B Explanation: Snake is not an ureotelic animal. Ureotelic animals excrete nitrogenous waste in the form of urea.
Q55) Which group of cranial nerves control eye ball movements ? A) Optic, Abducens, Pathetic B) Optic, Oculomotor, Trochlear C) Oculomotor, Abducens, Auditory D) Oculomotor, Abducens, Trochlear
Correct option: D Explanation: Oculomotor, Abducens, Trochlear cranial nerves control eye ball movements. These nerves control the intraocular and extraocular muscles
Q54) What is “After birth” referred to? A) Amniotic fluid passing out B) Expulsion of baby C) Expulsion of placenta, umbilical cord and foetal membrane D) Secretion of hormone relaxin
Correct option: C Explanation: After birth is referred to the expulsion of placenta, umbilical cord and foetal membrane. It means the things that are expelled after the delivery.
Q52) In mechanism of hormone action, which of the following is NOT a second messenger ? A) Cyclic AMP B) IP3 C) Ca++ D) Mg++
Correct option: D Explanation: In mechanism of hormone action Mg++ is NOT a second messenger. Hormones are composed of proteins or steroids, are chemical messengers which enables communication...
In the given diagram ‘X’ is described as ___. (1) Ureter-conducting the urine. (2) Renal vein-conducting blood with minimum urea. (3) Renal artery conducting blood with no urea. (4) Renal artery -conducting blood with more urea.
Correct Answer: (2) Renal vein-conducting blood with minimum urea. Explanation: Identification of X - Renal vein-conducting blood with minimum urea. ...
Which of the following set of tissues is exclusively mesodermal in origin? (1) Connective and Muscular (2) Nervous and Connective (3) Connective and Epithelial (4) Epithelial and Nervous
Correct Answer: (1) Connective and Muscular Explanation: Connective and Muscular are the set of tissues is exclusively mesodermal in origin.
Crawler is a stage in life cycle of … (1) Lac insect (2) Silk moth (3) Honey bee (4) Fish
Correct Answer: (1) Lac insect Explanation: Crawler is a stage in life cycle of lac insect.
Darwin’s finches on Galapagos Island is the example of … (1) Genetic drift (2) Industrial melanism (3) Reproductive isolation (4) Geographical isolation
Correct Answer: (4) Geographical isolation Explanation: Darwin's finches on Galapagos Island is the example of geographical isolation.
Endoplasmic reticulum is a continuous system connecting at one end to nuclear membrane & the other end with … (1) Plasma membrane (2) Vacuole (3) Golgi complex (4) Lysosome
Correct Answer: (1) Plasma membrane Explanation: Endoplasmic reticulum is a continuous system connecting at one end to nuclear membrane & the other end with plasma membrane.
Modern man belongs to group (1) Pongidae (2) Hominidae (3) Prossimi (4) Hyalobatidae
Correct Answer: (2) Hominidae Explanation: Modern man belongs to group Hominidae.
Which of the following is NOT a process of Hershey- Chase experiment? (1) Blending (2) Infection (3) Test tube assay (4) Centrifugation
Correct Answer: (3) Test tube assay Explanation: Test tube assay is not a process of Hershey.
Which animal accompanies shark without getting attached to obtain food? (1) Flea (2) Sucker fish (3) Pilot fish (4) Sea Anemone
Correct Answer: (3) Pilot fish Explanation: Pilot fish is the animal accompanies shark without getting attached to obtain food.
The correct sequence of cytochromes as per their involvement in ETS of respiration is… (1) cyto.a -> cyto.b -> cyto.c1 -> cyto.c -> cyto.a3 (2) cyto.a3 -> cyto.a -> cyto.b -> cyto.c1 -> cyto.c (3) cyto.b -> cyto.c1 -> cyto.c -> cyto.a -> cyto.a3 (4) cyto.a -> cyto.c1 -> cyto.b -> cyto.c -> cyto.a3
Correct Answer: (3) cyto.b -> cyto.c1 -> cyto.c -> cyto.a -> cyto.a3 Explanation: The correct sequence of cytochromes as per their involvement in ETS of respiration is cyto.b ->...
In rDNA technology the recombinant DNA is also called (1) Cosmid (2) Plasmid (3) Chimeric DNA (4) Phage DNA
Correct Answer: (3) Chimeric DNA Explanation: In rDNA technology the recombinant DNA is also called chimeric DNA.
In the symplast pathway water travels from cell to cell through…. (1) Casperian strips (2) Plasmodesmata (3) Inter cellular spaces (4) Cellulosic cell wall
Correct Answer: (2) Plasmodesmata Explanation: In the symplast pathway water travels from cell to cell through plasmodesmata.
Which one of the following diseases is related to Adrenal gland? (1) Acromegaly (2) Goitre (3) Myxoedema (4) Cushing’s disease
Correct Answer: (4) Cushing's disease Explanation: Cushing's disease is related to Adrenal gland.
Choose the correct set of labelling for the given figure.
(1) a-suspensor, b-plumule, c-radicle, d-cotyledons (2) a-radicle, b-suspensor, c-plumule, d-cotyledons (3) a-radicle, b-suspensor, c-suspensor,...
In kidney, about 7 to 8 collecting ducts of nephron join to form …. (1) Ureter (2) Major calyx (3) Duct of Bertini (4) Duct of Bellini
Correct Answer: (4) Duct of Bellini Explanation: In kidney, about 7 to 8 collecting ducts of nephron join to form duct of Bellini
The number of codons in genetic dictionary is 64 as .. (1) genetic code is triplet in nature (2) the number of t-RNA is 64 (3) there are 64 amino acids to be coded (4) there are three nonsense codons
Correct Answer: (1) genetic code is triplet in nature Explanation: The number of codons in genetic dictionary is 64 as genetic code is triplet in nature.
Modification like winged seeds, pappus calyx, hooks of seedcoat, sticky substances on seeds are meant for seed… (1) dormancy (2) dispersal (3) viability (4) protection
Correct Answer: (2) dispersal Explanation: Modification like winged seeds, pappus calyx, hooks of seedcoat, sticky substances on seeds are meant for seed dispersal.
Match the following pairs & choose correct option. $\begin{array}{*{20}{c}} {}&{Column1}&{}&{Column2}\\ a&{Sulphur}&1&{Constituent\ of\ phospholipid}\\ b&{Phosphorus}&2&{Constituent\ of\ cell\ wall}\\ c&{Calcium}&3&{Constituent\ of\ ferredoxin}\\ d&{Iron}&4&{Constituent\ of\ methionine} \end{array}$ (1) a-1, b-4, c-3, d-2 (2) a-4, b-1, c-2, d-3 (3) a-3, b-2, c-4, d-1 (4) a-4, b-3, c-1, d-2
Correct Answer: (2) a-4, b-1, c-2, d-3
Which substance out of following decrease the heart rate? (1) Adrenaline (2) Erythropoietin (3) Caffeine (4) Acetylcholine
Correct Answer: (4) Acetylcholine Explanation: Acetylcholine is the substance which decreases the heart rate.
Pneumotaxic centre is located in the… (1) Pons (2) Cerebrum (3) Cerebellum (4) Medulla oblongata
Correct Answer: (1) Pons Explanation: Pneumotaxic centre is located in the pons.
Find out the wrongly matched pair. (1) Protogyny-Pisum sativum (2) Protandry-sunflower (3) Self sterility-orchids (4) Unisexuality -castor
Correct Answer: (1) Protogyny-Pisum sativum Explanation: Wrong Match: Protogyny - Pisum sativum
Epigeal Germination is seen in …. (1) Mango (2) Tamarind (3) Groundnut (4) Pea
Correct Answer: (2) Tamarind Explanation: Epigeal Germination is seen in tamarind.
The enzyme useful in gene amplification in PCR is …. (1) Endolysin (2) Taq polymerase (3) Alkaline phosphatase (4) Transposase
Correct Answer: (2) Taq polymerase Explanation: The enzyme useful in gene amplification in PCR is taq polymerase.
Emasculation is done in flowers before anthesis to prevent _______. (1) hybridization (2) autogamy (3) allogamy (4) xenogamy
Correct Answer: (2) autogamy Explanation: Emasculation is done in flowers before anthesis to prevent autogamy.
The respiratory and the food passages cross each other in the … (1) Sensory part of nasal chamber (2) Naso Pharynx (3) Oro-Pharynx (4) Pharynx
Correct Answer: (4) Pharynx Explanation: The respiratory and the food passages cross each other in the pharynx.
Which of the following pairs shows heterogamesis? (1) Human male and Avian Male (2) Female banded krait and human female (3) Male banded krait and human female (4) Human male and avian female
Correct Answer: (4) Human male and avian female Explanation: Human male and avian female shows heterogamesis.
The hormone melatonin is concerned with … (1) Homeostasis (2) Metabolism (3) Biological rhythm (4) Muscle tone
Correct Answer: (3) Biological rhythm Explanation: The hormone melatonin is concerned with biological rhythm.
A tall, axial flower bearing pea plant can have how many different genotypes? (1) Three (2) Two (3) Four (4) One
Correct Answer: (3) Four Explanation: A tall, axial flower bearing pea plant can have four different genotypes.
Antigen binding site (Paratope) of an antibody is present in .. (1) Variable region of light chain (2) Variable region of both heavy and light chain (3) Variable region of heavy chain (4) Constant region of both light and heavy chain
Correct Answer: (2) Variable region of both heavy and light chain Explanation: Antigen binding site (Paratope) of an antibody is present in variable region of both heavy and light chain.
In the given diagram ‘X’ stands for ____
(1) Mucosa which absorbs nutrients from digested food (2) Lacteal which absorbs fatty acids and glycerol (3) Blood vessel which absorbs digested food (4) Lacteal which...
The first vaccine was produced in an attempt to provide protection against… (1) Small pox (2) Tuberculosis (3) Polio (4) Chicken pox
Correct Answer: (1) Small pox Explanation: The first vaccine was produced in an attempt to provide protection against small pox.
The association of Rhizobium with root nodules in leguminous plants is called .., (1) Commensalism (2) Mutualism (3) Predation (4) Parasitism
Correct Answer: (2) Mutualism Explanation: The association of Rhizobium with root nodules in leguminous plants is called mutualism.
Identify the INCORRECT match (1) Scrubber – Agricultural waste (2) Fish management -Water pollution (3) Land fillings – Radioactive wastes (4) Electrodialysis- Water purification
Correct Answer: (1) Scrubber - Agricultural waste Explanation: Incorrect Match: Scrubber - Agricultural waste Scrubber is not an agricultural waste.
At the end of oogenesis, …polar bodies are formed. (1) Three (2) Two (3) One (4) Four
Correct Answer: (1) Three Explanation: At the end of oogenesis, three polar bodies are formed.
Read the following statements and select the one which explains “Factors” with reference to environment. (1) A particular place where organisms live (2) Environmental complex (3) External forces, substances or conditions, which can affect the living organism in one or the other way. (4) Organisms which not merely occupy the place but also specify functional role in the community
Correct Answer: (3) External forces, substances or conditions, which can affect the living organism in one or the other way. Explanation: Factors with reference to environment are the external...
During fertilization, entry of the sperm into secondary oocyte stimulates all of the following events EXCEPT … (1) Completion of meiosis-II (2) Formation of vitelline membrane (3) Release of second polar body (4) Introduction of centrioles in the secondary oocyte
Correct Answer: (2) Formation of vitelline membrane Explanation: During fertilization, entry of the sperm into secondary oocyte stimulates all of the following events except formation of vitelline...
Each nerve is surrounded by thick sheath of a connective tissue called ________ (1) epineurium (2) perichondrium (3) Perineurium (4) endoneurium
Correct Answer: (4) endoneurium Explanation: Each nerve is surrounded by thick sheath of a connective tissue called endoneurium.
Ascaris needs ……host/s for completion of its life cycle. (1) one (2) three (3) two (4) four
Correct Answer: (1) one Explanation: Ascaris needs one host/s for completion of its life cycle.
The development of male gametophyte from a pollen mother cell shows ….. divisions. (1) one meiotic & two mitotic (2) two meiotic & two mitotic (3) one meiotic & one mitotic (4) one meiotic & three mitotic
Correct Answer: (1) one meiotic & two mitotic Explanation: The development of male gametophyte from a pollen mother cell shows one meiotic & two mitotic divisions.
Which one of the following is a rich source of cytokinin? (1) Butter milk (2) Peanut milk (3) Coconut milk (4) Grape juice
Correct Answer: (3) Coconut milk Explanation: Coconut milk is a rich source of cytokinin.
Kidneys do not carry out the function of … (1) Urea formation (2) Osmoregulation (3) Natriuresis (4) Excretion
Correct Answer: (1) Urea formation Explanation: Kidneys do not carry out the function of urea formation.
Which of the following are also called as polymorphs? (1) Neutrophils (2) Lymphocytes (3) Basophils (4) Macrophages
Correct Answer: (1) Neutrophils Explanation: Neutrophils is also called as polymorphs.
For the formation of 80 male gametes how many pollen mother cells are required? (1) 15 (2) 20 (3) 10 (4) 5
Correct Answer: (3) 10 Explanation: For the formation of 80 male gametes ten pollen mother cells are required.
Euchromatin is the part of chromatin material, which is … (1) genetically inert (2) darkly stained (3) genetically active (4) condensed region of chromatin
Correct Answer: (3) genetically active Explanation: Euchromatin is the part of chromatin material, which is genetically active.
What will be correct sequence of these according to ascending order of their molecular weights? (1) tRNA, DNA, rRNA (2) tRNA, rRNA, DNA (3) DNA, rRNA, tRNA (4) rRNA, t RNA, DNA
Correct Answer: (2) tRNA, rRNA, DNA Explanation: tRNA, rRNA, DNA will be the correct sequence according to ascending order of their molecular weights.
Which substance is released by thrombocytes while initiating blood clotting process? (1) Anti thrombin (2) Thromboplastin (3) Heparin (4) Histamine
Correct Answer: (2) Thromboplastin Explanation: Thromboplastin is the substance that is released by thrombocytes while initiating blood clotting process.
Mushrooms are rich in (1) vitamins and proteins (2) amino acids and starch (3) minerals and starch (4) proteins and lipids
Correct Answer: (1) vitamins and proteins Explanation: Mushrooms are rich in vitamins and proteins.
The part of chromosome beyond nucleolar organizer is termed as (1) Telomere (2) Satellite (3) Chromomere (4) Centromere
Correct Answer: (2) Satellite Explanation: The part of chromosome beyond nucleolar organizer is termed as satellite.
The wall of eye ball is formed by …. (1) Outer sclera, middle choroid & inner retina (2) Outer choroid, middle sclera, & inner fovea (3) Outer sclera, middle cornea, & Inner retina (4) Outer choroid, middle cornea & inner fovea
Correct Answer: (1) Outer sclera, middle choroid & inner retina Explanation: The wall of eye ball is formed by outer sclera, middle choroid & inner retina.
Which of the following organisms show both cell wall & chlorophyll? (1) Euglena (2) Agaricus (3) Funaria (4) Amoeba
Correct Answer: (3) Funaria Explanation: Funaria shows both cell wall & chlorophyll.
Opening & closing of stomata is due to … (1) gaseous exchange (2) change in turgor pressure of guard cells (3) guttation (4) respiration
Correct Answer: (2) change in turgor pressure of guard cells Explanation: Opening & closing of stomata is due to change in turgor pressure of guard cells.
Example of lethal gene is… (1) wings in Drosophila (2) colour of flower in four O’ clock plant (3) sickle cell anaemia (4) kernel colour of wheat
Correct Answer: (3) sickle cell anaemia Explanation: Example of lethal gene is sickle cell anaemia.
In the given diagram, the fluid/secretion found in part X is ___.
(1) Cerebrospinal fluid (2) Acetyl Choline (3) Endolymph (4) Extracellular fluid Correct Answer: (2) Acetyl Choline Explanation: Identification of X – Acetyl...
Hormone relaxin is secreted by … (1) Corpus Callosum (2) Graafian follicle (3) Corpus luteum (4) Corpora striata
Correct Answer: (3) Corpus luteum Explanation: Hormone relaxin is secreted by Corpus luteum.
The proportion of Hydrogen to Oxygen in carbohydrates is _______ respectively. (1) 2:1 (2) 2:3 (3) 1:2 (4) 3:2
Correct Answer: (1) 2:1 Explanation: The proportion of Hydrogen to Oxygen in carbohydrates is 2 : 1.
The factor which directly does not affect the rate of photosynthesis is…. (1) $C{O_2}$ concentration (2) Temperature (3) Water (4) Light
Correct Answer: (3) Water Explanation: The factor which directly does not affect the rate of photosynthesis is water.
With reference to age structure, the number of individuals in a growing population has …. individuals. (1) equal number of pre and post reproductive (2) large number of post reproductive (3) least number of reproductive (4) larger number of pre reproductive
Correct Answer:(4) larger number of pre reproductive Explanation: With reference to age structure, the number of individuals in a growing population has larger number of pre reproductive...
If coronary sinus: right atrium, then, left ventricle: ________ (1) Pulmonary vein (2) Systemic aorta (3) Pulmonary aorta (4) Left atrium
Correct Answer: (2) Systemic aorta Explanation: If coronary sinus: right atrium, then, left ventricle: Systemic aorta.
Father of Electrocardiography is …. (1) James Watson (2) Johann Mendel (3) Einthoven (4) William Harvey
Correct Answer: (3) Einthoven Explanation: Father of Electrocardiography is Einthoven.
Out of 18 ATP molecules required during the synthesis of a glucose molecule how many are used in the regeneration of 6 RuBP? (1) 3 (2) 4 (3) 6 (4) 5
Correct Answer: (3) 6 Explanation: Out of 18 ATP molecules required during the synthesis of a glucose molecule, six are used in the regeneration of 6 RuBP.
Gemmule formation takes place in … (1) Amoeba (2) Planaria (3) Hydra (4) Ephydatia
Correct Answer: (4) Ephydatia Explanation: Gemmule formation takes place in Ephydatia.
Which hormone is secreted by Graafian follicle of ovary? (1) LH (2) FSH (3) Progesterone (4) Oestrogen
Correct Answer: (4) Oestrogen Explanation: Oestrogen is the hormone that is secreted by Graafian follicle of ovary.
Papaya plant always shows… (1) autogamy (2) dichogamy (3) geitonogamy (4) xenogamy
Correct Answer: (4) xenogamy Explanation: Papaya plant always shows xenogamy.
Primary goal of the Human Genome Project (HGP) was to generate two main types of maps namely, ….. maps and …. maps (1) Mutation; Physical (2) Genetic linkage; physical (3) Racial; physical (4) Genetic linkage; mutation
Correct Answer: (2) Genetic linkage; physical Explanation: Primary goal of the Human Genome Project (HGP) was to generate two main types of maps namely, genetic linkage maps and physical maps....
The sum total of genes of all individuals of an interbreeding population is called …. (1) . gene frequency (2) gene mutation (3) gene pool (4) gene flow
Correct Answer: (3) gene pool Explanation: The sum total of genes of all individuals of an interbreeding population is called gene pool.
Plantation of trees in barren & unexploited land to improve environment is known as…… (1) Reforestation (2) Social forestry (3) Afforestation (4) Deforestation
Correct Answer: (3) Afforestation Explanation: Plantation of trees in barren & unexploited land to improve environment is known as afforestation.
Which one of the following enzymes is used for polymerisation of DNA in PCR technique? (1) DNA Polymerase-II (2) RNA Polymerase (3) DNA Polymerase-I (4) Taq Polymerase
Correct Answer: (4) Taq Polymerase Explanation: Taq Polymerase is an enzyme which is used for the polymerisation of DNA in PCR technique.
Which one of the following is NOT artificial vegetative propagation? (1) Grafting (2) Budding (3) Cutting (4) Runner
Correct Answer: (4) Runner Explanation: Runner is not an artificial vegetative propagation.
Peristaltic movements are carried out by …. (1) Cardiac muscles (2) Visceral muscle (3) Voluntary muscles (4) Dartos tunic muscles
Correct Answer: (2) Visceral muscle Explanation: Peristaltic movements are carried out by visceral muscle.
A biologist studied the population of tiger in Tadoba national park (Maharashtra). He found that the average natality was 150, average mortality 140, immigration 10 and emigration 20. The net increase in population was_____. (1) 15 (2) 10 (3) 0 (4) 5
Correct Answer: (3) 0 Explanation: A biologist studied the population of tiger in Tadoba national park (Maharashtra). He found that the average natality was 150, average mortality 140, immigration...
In prokaryotes…. is the outermost covering of the cell envelope. (1) Plasma membrane (2) Tonoplast (3) Cell wall (4) Glycocalyx
Correct Answer: (4) Glycocalyx Explanation: In prokaryotes, glycocalyx is the outermost covering of the cell envelope.
How many ATP molecules are generated through Electron Transport System in aerobic respiration from one glucose molecule? (1) 36 ATP (2) 38 ATP (3) 34 ATP (4) 40 ATP
Correct Answer: (3) 34 ATP Explanation: 34 ATP molecules are generated through Electron Transport System in aerobic respiration from one glucose molecule.
In cellular respiration, when proteins are used as substrate then what is the value of RQ? (1) Always 1 (2) About 0.9 (3) Always infinity (4) About 0.7
Correct Answer: (2) About 0.9 Explanation: In cellular respiration, when proteins are used as substrate then about 0.9 is the value of RQ.
Production of beer from barley through the fermentation process includes steps as (1) Boiling, distillation, fermentation (2) Filtration, distillation, sedimentation (3) Malting, mashing, fermentation (4) Drying, spawning, fermentation, distillation
Correct Answer: (3) Malting, mashing, fermentation Explanation: Production of beer from barley through the fermentation process includes steps as malting, mashing and fermentation.
In the given diagram of v.s. of Blastula, what does ‘X’ indicate? PIC (1) Archenteron (2) Antrum (3) Enteron (4) Blastocoel
Correct Answer: (4) Blastocoel Explanation: Identification of X - Blastocoel
Which one of the following is not an unsaturated fatty acid? (1) Linoleic acid (2) Oleic acid (3) Palmitic acid (4) Palmitoleic acid
Correct Answer: (3) Palmitic acid Explanation: Palmitic acid is not an unsaturated fatty acid.
Which among the following is the largest taxon (1) Renales (2) Tiliaceae (3) Gamopetalae (4) Hibiscus
Correct Answer: (3) Gamopetalae Explanation: Gamopetalae is the largest taxon.