Enzymes required for mRNA synthesis is/are ?: (A) RNA polymerase I, (B) RNA polymerase II, (C) Primase, (D) Topoisomerase
Answer is B. Ans. is 'b' i.e., RNA polymerase II It catalyzes the synthesis of mRNA, small nuclear RNA (sn-RNA) and miRNA.These products are coded by class II gene, i.e. class II gene is transcribed by mRNA.Class II gene differ from class I and III in that one of its transcribed products (mRNA) is translated into protein.