Based on Figure 19

question 56

Multiple Choice

Based on Figure 19.21, below, which of the following is NOT an accurate description of events leading to the lysogenic pathway following viral infection in a bacterium?

• A)Upon infection, transcription is initiated at promoters P_L and P_R. The transcripts from P_R encode the proteins cro and cII.
• B)Reduction in the concentration of cI protein is the most important contributor to lysogeny.
• C)Reduced protease activity due to poor conditions allows cII to accumulate, which then stimulates transcription from P_E and thus expression of cI.
• D)cI protein binds to operator O_R, preventing cro and cII expression.
• E)cI protein stimulates transcription from promoter P_M, leading to even more cI production. The increased cI binds to operator O_L and inhibits P_L.