Question

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

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

Posted under Recombinant DNA Technology Biochemistry

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

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