PG entrance exam CUET PG 2025 Mock Test Life Sciences Fundamental Processes RNA synthesis and processing
Which of the following statements related to transcription in bacteria/eukaryotes are correct?
(A). During concurrent promoter sequence recognition and melting, melting commences with base flipping, where two bases are flipped out in to pockets of the primary sigma factor.
(B). Binding of α-amanitin to RNA polymerase II, permits entry of nucleotides into RNA polymerase II, active site and synthesis of RNA, but prevents translocation.
(C). RNA polymerase I cannot bind to upstream promoters.
(D). FACT is associated with RNA polymerase during transcriptional elongation and helps, displace one histone octomers during transcription.
Choose the correct answer from the options given below:
1
(A), (B) and (D) only.
2
(A), (B) and (C) only.
3
(B), (C) and (D) only.
4
(B), and (D) only.