Transcription and Regulation
What is a promoter?

A specific DNA sequence to which a restriction endonuclease binds
None of these
A specific sequence of DNA to which RNA polymerase binds
A specific sequence of DNA to which a catabolic repressor binds

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

Presence of glucose in the growth media
Presence of IPTG (isopropyl thiogalactoside) in the growth media
Presence of lactose in the growth media
Both (b) and (c)

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