The Lac Operon Is Induced by the Presence of Lactose

question 7

Multiple Choice

The lac operon is induced by the presence of lactose, but it is transcribed at a high rate only when:

• A)The cyclic adenosine monophosphate (cAMP) level in the cell is high.
• B)A ribosome binds to the Shine-Dalgarno sequence.
• C)A ribosome binds to the 5' cap of the mRNA.
• D)Tryptophan is present in high concentration.
• E)Glucose is present

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