EVERYDAY SCIENCE

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: -During the lysogenic cycle, the virus genome is incorporated as prophage and a repressor prevents viral replication. Nonetheless, a temperate phage can escape repression to replicate, produce viral particles, and lyse the bacteria. The temperate phage escaping repression would be a disadvantage for the bacteria.

Detailed explanation-3: -They can remain in the body and enter what is called a “latent phase.” This is a phase in which the virus is quiescent, i.e., it is inactive or dormant and does not actively replicate or multiply. The virus does not kill or even damage the host cells during the latent viral phase or silent phase.

Detailed explanation-4: -Latent Infection Not all animal viruses undergo replication by the lytic cycle. There are viruses that are capable of remaining hidden or dormant inside the cell in a process called latency. These types of viruses are known as latent viruses and may cause latent infections.