Match List – I with List – II.
| LIST I (Name of the Enzyme) | LIST II (Function of the enzyme) |
| A. RNA Polymerase I | I. Transcription of hnRNA |
| B. RNA Polymerase II | II. Polymerisation in 5' to 3' direction |
| C. RNA Polymerase III | III. Transcription of rRNAs (28S, 18S, 5.8S) |
| D. DNA dependent RNA Polymerase | IV. Transcription of tRNA, 5srRNA, snRNA |
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → A-III, B-I, C-IV, D-II
A. RNA Polymerase I — this matches III. Transcription of rRNAs (28S, 18S, 5.8S).
B. RNA Polymerase II — this matches I. Transcription of hnRNA.
C. RNA Polymerase III — this matches IV. Transcription of tRNA, 5srRNA, snRNA.
D. DNA dependent RNA Polymerase — this matches II. Polymerisation in 5' to 3' direction. It adds nucleotides in the 5′ → 3′ direction.
NCERT Extract:
Transcription – “… There are at least three RNA polymerases in the nucleus (in addition to the RNA polymerase found in the organelles). There is a clear cut division of labour. The RNA polymerase I transcribes rRNAs (28S, 18S, and 5.8S), whereas the RNA polymerase III is responsible for transcription of tRNA, 5srRNA, and snRNAs (small nuclear RNAs). The RNA polymerase II transcribes precursor of mRNA, the heterogeneous nuclear RNA (hnRNA).”