Which of the following statements about lac operon in e.coli is true?

Question

Options:

A . Promoter is the binding site for the lac repressor

B . Operon is only switched on in the absence of lactose in the growth medium

C . β-galactosidase is only produced in large quantities when the lac repressor is bound to the operator

D . Lac operon mRNA is a polycistronic mRNA

Answer: Option D
Answer: (d).Lac operon mRNA is a polycistronic mRNA

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