This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Biochemistry
[{'content': 'RNA polymerase recognizes? \nSelect and explain. \nA. Promoter site, B. Initiation site, C. Regulator site, D. Stop site', 'role': 'user'}, {'content': 'Answer: A \nExplanation: (40) Promoter site REF: Harper 27`h ed p. 349 RNA polymerase has sigma sub unit which recognises promotor nucleotide sequence. It does not require primer and has no proof reading activity Types: r RNA m RNA, mi RNA, Sn RNA t- RNA, 5s-rRNA, some SnRNA', 'role': 'assistant'}]