Based on Figure 19

question 152

Multiple Choice

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

• A)Upon infection, transcription is initiated from promoters P_L and P_R.
• B)The transcripts from P_R encode the proteins cro and cII.
• C)The cro protein represses transcription from P_M so that the cl protein is not transcribed.
• D)Strong protease activity rapidly degrades cII, and cro continues to repress cI expression, leading to the lytic path.
• E)Reduced protease activity due to poor conditions allows cII to accumulate, which then stimulates transcription from P_E and thus expression of cI.

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