Which one of the following statements regarding lac operon is correct? – InterviewSolution

InterviewSolution

1.	Which one of the following statements regarding lac operon is correct?A. Lac operon is inducible systemB. Lac operon is repressible systemC. Lac operon of E.coli contain four structural genesD. None of the above
Answer» Correct Answer - A Lac operon is an inducible operon in which the presence of key metabolic substance i.e lactose indices transcription of structural genes lac person consist of three structural genes Tryptophan operon is a repressible operon where repressor is inactive and it becomes active as DNA binding proteins complexed with corepressor

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