Consider the Lac Operon of E

question 20

Multiple Choice

Consider the lac operon of E. coli. When there is neither glucose nor lactose in the growth medium:

• A) CRP protein binds to the lac operator.
• B) CRP protein displaces the Lac repressor from the lac promoter.
• C) the repressor is bound to the lac operator.
• D) RNA polymerase binds the lac promoter and transcribes the lac operon.
• E) the operon is fully induced.

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