Bacteriophage Lambda Maintains the Lysogenic Phase of Its Life Cycle

question 21

Multiple Choice

Bacteriophage lambda maintains the lysogenic phase of its life cycle when

• A)high levels of cI and high levels of cro proteins are present in bacterial cells
• B)low levels of cI and high levels of cro proteins are present in bacterial cells
• C)high levels of cI and low levels of cro proteins are present in bacterial cells
• D)low levels of cI and low levels of cro proteins are present in bacterial cells
• E)none of these conditions maintains lysogeny

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