When the Operator Is Unbound, the Binding of the CRP-CAMP

question 57

Multiple Choice

When the operator is unbound, the binding of the CRP-cAMP complex _______ the binding of RNA polymerase at the promoter.

• A) prevents
• B) decreases
• C) increases
• D) blocks
• E) All of the above are sometimes true, depending on the concentration of lactose.

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