Eamcet Zoology - 2 nd Year Unit - 2 Genetics And Evolution - Genetics Free Online Tests | Mock Tests | Preparation | Practice Tests

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Lactose is the substrate for the enzyme β - galactosidase, it regulates

A. Switching on and off of the operon

B. synthesis of polypeptide chain

C. Attachment RNA polymerase to promoter

D. expression of inhibitor gene

E. None of the above

View Answer

Correct choice: A

Explanation:

none

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