1.

Which factor phosphorylates the serine residues in RNA pol II CTD?(a) TFIIA(b) TFIIB(c) TFIIH(d) TFIIDThis question was posed to me during an internship interview.My enquiry is from Transcription in Eukaryotes : RNA Polymerases in division Gene Expression : Transcription Prokaryotes of Cytogenetics

Answer»

The correct option is (c) TFIIH

To elaborate: TFIIH phosphorylates the serine 2 of the HEPTAD REPEAT that DRIVES the RNA pol into INITIATION. The other factors mentioned are only part of pre-initiation complex and not of transcribing RNA pol.



Discussion

No Comment Found

Related InterviewSolutions