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NEETZoologyMolecular Basis of Inheritance

Match List-I with List-II regarding transcription in eukaryotes. List-I (Enzyme) List-II (RNA product) A. RNA polymerase I I. hnRNA B. RNA polymerase II II. 28S rRNA C. RNA polymerase III III. tRNA Choose the correct answer from the options given below:

Options

  1. AA-II, B-I, C-III
  2. BA-I, B-II, C-III
  3. CA-II, B-III, C-I
  4. DA-III, B-I, C-II

Correct answer

A. A-II, B-I, C-III

Step-by-step solution

In eukaryotic transcription, there are three different DNA-dependent RNA polymerases with specific roles: RNA polymerase I transcribes rRNAs (28S, 18S, and 5.8S). Thus, A matches with II. RNA polymerase II transcribes the precursor of mRNA, which is heterogeneous nuclear RNA (hnRNA). Thus, B matches with I. RNA polymerase III is responsible for the transcription of tRNA, 5S rRNA, and snRNAs. Thus, C matches with III. Therefore, the correct matching is A-II, B-I, C-III. Answer: A-II, B-I, C-III

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