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

What is the role of RNA polymerase III in the process of transcription in eukaryotes?
  1. Transcribes rRNAs (28S, 18S and 5.8S)
  2. Transcribes tRNA, 5S rRNA and snRNA
  3. Transcribes precursor of mRNA
  4. Transcribes only snRNAs

Solution

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

Asked in: NEET 2021

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