NEET Botany Molecular Basis of Inheritance Questions Solved


Which one(s) is / are correct?
A. In prokaryotes single type of RNA polymerase can transcribe mRNA, tRNA and rRNA.
B. In eukaryotes RNA polymerase I transcribes rRNA (28s, 18s and 5.8s) whereas RNA pol III is responsible for transcription of tRNA, 5s rRNA and RNAs.
C. RNA pol II transcribes HnRNA in eukaryotes.
D. Ribosomal large subunit has p and A-sites.
(a) A, C                (b) A, B, C, D                  (c) B, C, D                  (d) A, B, C

All of the above mentioned statements are correct.

A. Transcription in prokaryotes is catalysed by RNA Polymerase only.

B. In eukaryotes,

RNA polymerase I : transcribes rRNAs (28S, 18S, and 5.8S)

RNA polymerase III : transcription of tRNA, 5srRNA, and snRNAs

C. RNA polymerase II : precursor of mRNA, the heterogeneous nuclear RNA (hnRNA).

D.   Large subunit of Ribosome has three sites- E, P and A site

Difficulty Level:

  • 11%
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  • 20%
  • 16%
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