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 lawn of cells due to lysis by phage.
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 lawn of cells due to lysis by phage.