The Lac Repressor Can Function as an Inhibitor of Transcription

question 57

Multiple Choice

The lac repressor can function as an inhibitor of transcription of the lactose operon because of its ability to

• A) covalently modify promoter DNA.
• B) bind the allosteric effector cAMP.
• C) stabilize nucleosomes.
• D) bind operator DNA with high affinity.

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