For the bacteriophage $\lambda$, the "decision" to become a prophage is made
A) if environmental resources (e.g., food) for the host are limited.
B) when the Cro protein binds the promoter.
C) when the cI protein binds the promoter.
D) when bacterial lysis occurs.
E) at the end of the lytic infection.

Question

Quizplus · Accepted Answer

The decision for bacteriophage F1F1F1S1F1F1F10 to become a prophage is made when the cI protein binds the promoter. This is because cI protein is a repressor protein that can bind to the promoter of lytic genes in the phage genome, preventing their transcription and promoting the expression of lysogenic genes, leading to the integration of the phage genome into the host chromosome as a prophage.

For the Bacteriophage λ\lambdaλ , the "Decision" to Become a Prophage Is Made A)

For the Bacteriophage $\lambda$ , the "Decision" to Become a Prophage Is Made
A)