Q.

The lac operator is present only in lac operon and it interacts specifically with _______.A. lac repressorB. Val operonC. Trp repressorD. lac inducerE. Co-repressor inducer complexChoose the correct fill in the blank given above.

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a

lac repressor and Val operon

b

lac repressor, lac inducer and co-repressor inducer complex

c

lac repressor

d

lac repressor, Val operon and Trp repressor

answer is C.

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Detailed Solution

The operator region is adjacent to the promoter elements in most operons and in most cases the sequences of the operator bind a repressor protein. Each operon has its specific operator and specific repressor.
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The lac operator is present only in lac operon and it interacts specifically with _______.A. lac repressorB. Val operonC. Trp repressorD. lac inducerE. Co-repressor inducer complexChoose the correct fill in the blank given above.