Question

Transducing virulent phages do not lyse the cells they invade because

A) transformation is taking place in the phage and this is transferred to the bacterium.
B) bacterial DNA has replaced critical viral DNA in the phage.
C) their virulence is dependent on the bacteria and virus replicating together.
D) the lytic genes are unable to enter during penetration and are shed outside the host.

Answer 1

Transducing virulent phages do not lyse the cells they invade because the lytic genes are unable to enter during penetration and are shed outside the host.

Step-by-step explanation:

In the case of transducing virulent phages, the reason they do not lyse the cells they invade is because the lytic genes are unable to enter during penetration and are shed outside the host. The lytic cycle of a virulent phage involves the phage replicating and lysing the host cell to release new phages. However, in transducing phages, there is a failure in the penetration process, preventing the entry of lytic genes into the host cell. Instead, these genes are released outside the host, resulting in the phage not causing lysis of the invaded cells.