Q.

What is the role of RNA polymerase III in the process of transcription in Eukaryotes            [2023]

1 Transcription of precursor of mRNA  
2 Transcription of only snRNAs  
3 Transcription of rRNAs (28S, 18S and 5.8S)  
4 Transcription of tRNA, 5 SrRNA and snRNA  

Ans.

(4)

RNA polymerase III is responsible for transcription of tRNA, 5SrRNA and snRNAs (small nuclear RNAs). RNA polymerase I transcribes rRNA (28S, 18S and 5.8S) whereas RNA polymerase II transcribes precursor of mRNA, the heterogeneous nuclear RNA (hnRNA).