Transcription and Regulation
Transcription by E. coli polymerase occurs in

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

ANSWER DOWNLOAD EXAMIANS APP

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
None of these
A specific DNA sequence to which a restriction endonuclease binds

ANSWER DOWNLOAD EXAMIANS APP

Transcription and Regulation
The function of the sigma factor of RNA polymerase is to

assure that transcription begins at the proper point
assure that translation begins at the proper point
assure that translation ends at the proper point
assure that transcription ends at the proper point

ANSWER DOWNLOAD EXAMIANS APP