Q175 / 200 · NEET 2023 (Manipur) · Zoology

Which one of the following acts as an inducer for lac operon?

A
Glucose
B
Galactose
C
Sucrose
Correct answer
D
Lactose

Solution

Lactose acts as inducer of lac operon. Lactose binds with repressor protein and inactivates it allowing the expression of structural genes.

Hence, the correct answer is option: 'D'.

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