NEET 2019 Odisha · BiologyPrevious Year Question
Match the following RNA polymerase with their transcribed products : Column I (a) RNA polymerase I (b) RNA polymerase II (c) RNA polymerase III Column II (i) tRNA (ii) rRNA (iii) hnRNA Select the correct option from the following
Answer: (C) a-ii, b-iii, c-i. Answer: (C) a-ii, b-iii, c-i.
- A.a-i, b-iii, c-ii
- B.a-i, b-ii, c-iii
- C.a-ii, b-iii, c-i✓
- D.a-iii, b-ii, c-i
Correct Answer
(C) a-ii, b-iii, c-i
Solution & Explanation
Answer: (C) a-ii, b-iii, c-i. RNA polymerase I transcribes rRNAs (ii); RNA polymerase II transcribes the precursor of mRNA, the hnRNA (iii); RNA polymerase III transcribes tRNA (and 5SrRNA, snRNAs) (i). NCERT Ch 5, p.94 lines 026-027 and p.95 lines 003-006: "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)."
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