The sigma ($\sigma$) subunit of bacterial RNA polymerase remains associated for the addition of _______ during transcription.
A) the first ten nucleotides
B) the first half of the nucleotides
C) all of the nucleotides
D) the last ten nucleotides

Question

Quizplus · Accepted Answer

The sigma (F1F1F1S1F1F1F10) subunit of bacterial RNA polymerase remains associated for the addition of the first ten nucleotides during transcription. This allows for proper positioning and initiation of transcription at the promoter region. Once the RNA strand reaches a length of about 10 nucleotides, the sigma factor dissociates and transcription continues with the core enzyme.

The Sigma σ\sigmaσ ) Subunit of Bacterial RNA Polymerase Remains Associated for the Remains

The Sigma $\sigma$ ) Subunit of Bacterial RNA Polymerase Remains Associated for the Remains