b. Also describe as to, who determines the sex of an unborn child? Mention whether the temperature has a role in sex determination.

Solution:

Humans have XY chromosomes that determine their gender. The number of chromosomes in both males and females is the same. Males have an X chromosome and a Y chromosome. Females, on the other hand, have two copies of the X chromosome. They, too, have autosomes. Autosomes plus XY is heterogametic in males, whereas autosomes plus XX is female homogametic in females. Males are homogametic and females are heterogametic in birds, which have a separate sex-determining system in which females create two different types of gametes in terms of sex chromosomes: heterogamety in females.

b. An unborn baby’s sex is determined by his father. Incubation temperature is used by some reptiles to identify sex. In some animals, eggs that are exposed to extreme low or high temperatures develop into males, whereas eggs exposed to medium temperatures develop into females. As a result, temperature plays a role in determining sex.