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PPT - The lactose (lac) operon PowerPoint Presentation, free download - ID:4183480

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SOLVED:In regulation of the lac operon, when lactose is present and glucose is absent, a. there is a low level of cAMP present. b. there is a high level of cAMP present. c. transcription of structural genes occurs. d. transcription of lactose occurs. e. Both b and c are correct.