Transcription and Regulation
The binding of lac repressor to DNA could be considered to be analogous to

mixed-type inhibition of an enzyme
uncompetitive inhibition of an enzyme
allosteric effects in enzyme regulation
competitive inhibition of an enzyme

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Transcription and Regulation
Most transcripts of protein coding genes are cleaved

at the 3' end just before a poly adenylation signal
at the 5' end immediately before a poly adenylation signal
at the 5' end immediately after a poly adenylation signal
at the 3' end just after a poly adenylation signal

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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?

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

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