| List-I | List-II |
|---|---|
| Enzymes | Products |
| (A) RNA polymerase I | (I) hnRNA |
| (B) RNA polymerase III | (II) hydrolysis of lactose |
| (C) RNA polymerase II | (III) rRNA |
| (D) β-galactosidase | (IV) 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) - (IV), (C) - (I), (D) - (II)
(A) RNA polymerase I — this matches (III) rRNA. In eukaryotes there are three RNA polymerases in the nucleus. RNA polymerase I transcribes the rRNAs (28S, 18S and 5.8S).
(B) RNA polymerase III — this matches (IV) tRNA, 5SrRNA, snRNA. RNA polymerase III makes the small RNAs: tRNA, 5S rRNA and snRNAs.
(C) RNA polymerase II — this matches (I) hnRNA. RNA polymerase II transcribes the precursor of mRNA, the heterogeneous nuclear RNA, which is then capped, tailed and spliced.
(D) β-galactosidase — this matches (II) hydrolysis of lactose. It is the enzyme made by the z gene of the lac operon. It breaks lactose into glucose and galactose.
Note: A similar question was also asked in CUET (UG) 2026 on 24-05-2026 (Slot 1).