Phosphorylation of the CTD of RNA polymerase II occurs during which phase of transcription?
A) initial binding to the promoter
B) conversion from the closed complex to the open complex
C) termination of transcription
D) None of these

Question

Quizplus · Accepted Answer

Phosphorylation of the C-terminal domain (CTD) of RNA polymerase II occurs during the transition from the closed complex to the open complex, which is part of the initiation phase of transcription. This modification is crucial for promoter escape and the transition to elongation.

Phosphorylation of the CTD of RNA Polymerase II Occurs During