Multiple choice

Which of the following is the immediate precursor of mRNA?

  1. A single strand of DNA

  2. Heterogeneous nuclear RNA

  3. rRNA

  4. Small interfering RNA

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Heterogeneous nuclear RNA acts as immediate precursor for synthesis of mRNA. Mature mRNA is formed from hnRNA by capping, tailing, splicing and base modification.