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Question
Which of the following is required as an inducer(s) for the expression of lac operon?
Options
Lactose
Lactose and Galactose
Glucose
Galactose
MCQ
Solution
Lactose
Explanation:
The lac operon is a reversible operon. Lactose is the substrate for the enzyme beta-galactosidase, and it also controls the operon's on/off switch. As a result, it is known as an inducer.
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