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Transcription and Regulation

Q1:

Which of the following conditions would cause the release of the lac repressor protein from the lac operator site on DNA?

A Presence of glucose in the growth media

B Presence of lactose in the growth media

C Presence of IPTG (isopropyl thiogalactoside) in the growth media

D Both (b) and (c)

ANS:D - Both (b) and (c)

What is the effect on the lac operon when cAMP levels are lower and vice versa? Please explain me.



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