How does inducer exclusion control gene expression in the lac operon? a. Glucose

Question

How does inducer exclusion control gene expression in the lac operon?

a. Glucose inhibits the transport of lactose. It prevents the use of the other sugar and allows only use of glucose.

b. Glucose binds to the repressor protein and activates it. Repressor blocks transcription of the lac operon.

c. Glucose binds to the repressor protein and inactivates it. Transcription of the lac operon occurs.

d. Glucose activates the transport of lactose. It increases the rate of initiating transcription of the lac operon.

Explanation / Answer

Glucose inhibits the transport of lactose. It prevents the use of the other sugar and allows only use of glucose.

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