Bacteriophages Engage in Two Interactive Cycles with Bacteria

Question

Bacteriophages engage in two interactive cycles with bacteria. What are these cycles?
A) lytic and lysogenic
B) insertion and replication
C) auxotrophic and prototrophic
D) heteroduplex and homoduplex
E) negative and positive

Accepted Answer

Bacteriophages engage in two interactive cycles with bacteria - the lytic cycle and the lysogenic cycle. In the lytic cycle, the phage infects the bacterium, replicates its DNA, and causes the bacterium to lyse (break open), releasing new phages. In the lysogenic cycle, the phage DNA is integrated into the bacterial chromosome and replicates along with it, without causing immediate cell death.