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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 prevents transcription

C

Negative and repressible because repressor protein prevents transcription

D

Feedback inhibition because excess of `beta`- galactosidase can switch off transcription

Text Solution

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The correct Answer is:
B
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