Cro is a phage protein that represses transcription of cI but promotes expression of genes that encourage the lytic cycle.cI protein represses Cro transcription but promotes expression of genes that encourage lysogeny.A mutation in Cro decreases its expression.This mutation would make entering lysogeny _______ likely.A mutation that decreases the expression of cI would have _______ effect on the likelihood of the virus entering lysogeny.

Question

Quizplus · Accepted Answer

A mutation in Cro that decreases its expression would make entering lysogeny more likely because Cro represses cI, which promotes lysogeny. A decrease in cI expression would have the opposite effect, making lysogeny less likely, as cI promotes lysogeny.

Cro Is a Phage Protein That Represses Transcription of CI