NEET BIOLOGY

Detailed explanation-1: -The lytic cycle involves the reproduction of viruses using a host cell to manufacture more viruses; the viruses then burst out of the cell. The lysogenic cycle involves the incorporation of the viral genome into the host cell genome, infecting it from within.

Detailed explanation-2: -Transition from lysogenic to lytic If a bacterium containing prophage is exposed to stressors, such as UV light, low nutrient conditions, or chemicals like mitomycin C, prophage may spontaneously extract themselves from the host genome and enter the lytic cycle in a process called induction.

Detailed explanation-3: -Unlike a lytic virus, a lysogenic virus does not cause the host cell to lyse away. A lysogenic virus can remain inactive for a period of time. In lysogenic infection, viral DNA gets integrated with the host cell’s DNA, where it is copied along with the host cell’s DNA when the host cell replicates.

Detailed explanation-4: -Phages exhibit two distinct life cycles in bacteria, a lytic cycle and a lysogenic cycle. During the lytic cycle, phages replicate and progeny particles are released through lysis. By contrast, during lysogeny, phages integrate their genomes into the bacterial chromosome and enter a dormant state.