NEET BIOLOGY

Detailed explanation-1: -Lysogenic Cycle The virus remains dormant until host conditions deteriorate, perhaps due to depletion of nutrients; then, the endogenous phages (known as prophages) become active. At this point they initiate the reproductive cycle, resulting in lysis of the host cell.

Detailed explanation-2: -After the virus injects its DNA or RNA into the host bacteria, the genetic material can enter either the lytic cycle or the lysogenic cycle. In the lysogenic cycle, the bacteriophage DNA lies practically dormant. However, whenever the bacteria divides, the DNA of the virus is inadvertently copied.

Detailed explanation-3: -The lysogenic cycle, or non-virulent infection, involves the virus assimilating its genome with the host cell’s genome to achieve replication without killing the host. Figure 1. Example structure of a bacteriophage.