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Question

In lac operon i gene codes for

A
Inducer of lac operon
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B
Repressor of lac operon
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C
Hydrolysis of disaccharide
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D
Permease
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Solution

The correct option is A Repressor of lac operon
  • Lac operon is a operon that is required for the transport and metabolism of lactose in E.coli.
  • It consists of a promoter, gene i (regulatory gene) that represses the lac operon by producing a repressor molecule and an operator.
  • It also consists of coding regions the lac Z, lac Y, and lac A.

So, the correct answer is option B.

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