Transcription and Regulation
Transcription by E. coli polymerase occurs in

two phases known as initiation and termination
four phases known as initiation, propagation, elongation and termination
None of these
three phases known as initiation, elongation and termination

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Transcription and Regulation
Most transcripts of protein coding genes are cleaved

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

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Transcription and Regulation
What is a promoter?

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

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