During which phase do the β'- and σ -subunits of RNA polymerase melt 14 base pairs surrounding the transcription start site, causing the strands to separate?
A) chain initiation
B) chain elongation
C) intrinsic chain termination
D) rho-dependent chain termination

Question

​ During which phase do the β'- and σ -subunits of RNA polymerase melt 14 base pairs surrounding the transcription start site, causing the strands to separate?
A) chain initiation
B) chain elongation
C) intrinsic chain termination
D) rho-dependent chain termination

Quizplus · Accepted Answer

During the chain initiation phase, the β'- and σ-subunits of RNA polymerase are involved in melting 14 base pairs surrounding the transcription start site, which causes the DNA strands to separate and allows transcription to begin.

​ During Which Phase Do the β'- and σ -Subunits

During Which Phase Do the β'- and σ -Subunits