All are factors or subunits contained within the E. coli RNA polymerase holoenzyme in prokaryotic organisms EXCEPT:
A) ρ (rho).
B) α (alpha).
C) β (beta).
D) β′ (beta prime).
E) σ (sigma).

Question

Quizplus · Accepted Answer

ρ (rho) is a protein involved in the termination of transcription in prokaryotes, but it is not a factor or subunit contained within the E. coli RNA polymerase holoenzyme. The correct factors/subunits contained within the E. coli RNA polymerase holoenzyme are α (alpha), β (beta), β′ (beta prime), and σ (sigma).

All Are Factors or Subunits Contained Within the E