A) RNA polymerase- I
B) RNA polymerase- II
C) RNA polymerase-III
D) All of the above
Correct Answer: B
Solution :
RNA polymerase-II (RNAP-II or POL-II) is an enzyme found in eukaryotic cells. It catalyses the transcription of DNA to synthesise precursors of mRNA and most hn RNA and micro RNA. A 550 kDa complex of 12 subunits, RNAP-II is the most studied type of RNA polymerase. A wide range of transcription factors are required for it to bind to its promoters and begin transcription.
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