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Gene regulation governing lactose operon...

Gene regulation governing lactose operon of E.coli that involves the lac I gene product is

A

Positive and inducible because it can be induced by lactose

B

Negative and inducible because repressor protein pevents transcription

C

Negative and repressible because repressor protein prevents transcription

D

Feedback inhibition because exces og `beta`-galactosidase can be switch off transcription

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