Which of the Following RNAs is Formed by the Catalytic

Question

Which of the following RNAs is formed by the catalytic action of RNA polymerase II (Pol II)?
A) mRNA
B) rRNA
C) snRNA
D) tRNA

Accepted Answer

RNA polymerase II (Pol II) is responsible for transcription of protein-coding genes, which produces messenger RNA (mRNA). Therefore, the correct option is A) mRNA. The other options, rRNA, snRNA, and tRNA, are synthesized by different RNA polymerases.