NEET BIOLOGY

Detailed explanation-1: -(1) The cell may lyse or be destroyed. This is usually called a lytic infection and this type of infection is seen with influenza and polio.

Detailed explanation-2: -In the lytic cycle, the virus attaches to the host cell and injects its DNA. Using the host’s cellular metabolism, the viral DNA begins to replicate and form proteins. Then fully formed viruses assemble. These viruses break, or lyse, the cell and spread to other cells to continue the cycle.

Detailed explanation-3: -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-4: -Lytic infection involves the replication of a viral genome. This genome is packaged into a viral coat and released from the cell. This process of viral release from the cells results in lysis of cells, and hence, it is termed the ‘lytic phase’.