Match the LIST-I with LIST-II
| LIST-I | LIST-II |
|---|---|
| Terms | Relationships |
| A. RNA polymerase I | I. σ |
| B. Initiation factor | II. hnRNA |
| C. RNA polymerase II | III. rRNA |
| D. Termination factor | IV. ρ |
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → A - III, B - I, C - II, D - IV
(A) RNA polymerase I — this matches (III) rRNA. In eukaryotes, RNA polymerase I transcribes the rRNAs (28S, 18S and 5.8S).
(B) Initiation factor — this matches (I) σ. In bacteria, RNA polymerase joins with the initiation factor sigma (σ) to start transcription at the promoter.
(C) RNA polymerase II — this matches (II) hnRNA. RNA polymerase II transcribes the first copy of mRNA, called heterogeneous nuclear RNA (hnRNA). The hnRNA is later processed into mRNA.
(D) Termination factor — this matches (IV) ρ. The rho (ρ) factor joins the RNA polymerase and stops transcription.