If you wanted to prevent a cell from entering the lysogenic pathway, which gene controlled by P_RM would you target for inactivation? A)cro B)Q C)cI D)cII E)O

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Quizplus · Accepted Answer

The P_RM gene codes for a repressor protein called CI (Control of lysis). The CI repressor binds to the operator region of the lytic genes, preventing their expression while allowing the lysogenic pathway to proceed. Therefore, in order to prevent a cell from entering the lysogenic pathway, we need to inactivate the CI repressor protein. Therefore, targeting the gene that codes for the CI repressor protein (cI) would prevent the activation of the lysogenic pathway.

If You Wanted to Prevent a Cell from Entering the Lysogenic