In Bacteriophage Lambda, the Choice Between the Lytic and Lysogenic

question 113

Multiple Choice

In bacteriophage lambda, the choice between the lytic and lysogenic pathways is often thought of as a sort of race between the production of cro protein and production of cI protein. What pathway would likely predominate in a mutant in which cro was overexpressed relative to in a wild-type virus? In a mutant in which cro was underexpressed relative to a wild-type virus?

• A)lytic, lytic
• B)lytic, lysogenic
• C)lysogenic, lytic
• D)lysogenic, lysogenic

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