Minor differences in the consensus sequence for RNA Polymerase
A) can be exploited to vary the amount of mRNA which is synthesized from that gene.
B) dictate the direction that RNA Polymerase proceeds from the promoter.
C) dictate whether sigma ( σ ) factor is required.
D) never occur.
E) have no effect on transcription

Question

Quizplus · Accepted Answer

Minor differences in the consensus sequence for RNA Polymerase can indeed be exploited to vary the amount of mRNA synthesized from a gene. These variations can affect the binding affinity of RNA polymerase and, consequently, the rate of transcription initiation.

Minor Differences in the Consensus Sequence for RNA Polymerase