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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

Negative and inducible because repressor protein prevents transcription

B

Negetive and repressible because repressor protein prevents transcription

C

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

D

Positive and inducible because it can be induced by lactose

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The correct Answer is:
B
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ALLEN-GENETICS & MOLECULAR BASIS OF INHERITANCE AND MUTATION-EXERCISE-II (PREVIOUS YEAR QUESTIONS
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