Home Biology Molecular Basis of Inheritance Previous Year Questions What is the role of RNA ploymerase III in th…
Biology Molecular Basis of Inheritance Previous Year Questions Single Correct MCQ
Published on: August 21, 2026

What is the role of RNA ploymerase III in the process of transcription in eukaryotes?

A
Transcribes tRNA, 5s rRNA and sn RNA
B
Transcribes precursor of mRNA
C
Transcribes only snRNAs
D
Transcribes rRNAs (28S, 18S and 5.8S

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The correct answer is:
C

RNA polymerase III is responsible for transcription of tRNA, 5 srRNA and snRNA
RNA polymerase II is responsible for transcription of mRNA precursor, the heterogenous nuclear RNA (hnRNA). RNA polymerase I is responsible for transcription of 28S , 18S and 5.8S rRNA.

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