Question

The precursor of $\text{mRNA }$ is transcribed by

• A. RNA polymerase I
• B. RNA polymerase II
• C. RNA polymerase III
• D. Topoisomerase​

Answer 1

Answer: (B)

The precursor mRNA is hnRNA (heterogeneous nuclear RNA). It contains intron along with exons. It is transcribed by RNA polymerase II.