Regulatory gene in lac operon is 'i' gene. i is derived from word ________.

Inducer

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Inhibitor

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Inheritable

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None of these

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Solution

The correct option is B Inhibitor
The lac operon consists of one regulatory gene (the i gene) and three structural genes (z, y, and a). The notation 'i' does is derived from the word inhibitor. The i gene codes for the repressor of the lac operon.

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The letter 'i ' in the regulatory gene of lac operon refers to ________.

In lac operon, ‘i' gene codes for

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