NEET 2023
- Exam
- NEET
- Year
- 2023
- Subject
- Zoology
- Chapter
- Molecular Basis of Inheritance
NEET 2023 · Zoology · Molecular Basis of Inheritance
What is the role of RNA polymerase III in the process of...
What is the role of RNA polymerase III in the process of transcription in Eukaryotes?
Options
- ATranscription of only snRNAs
- BTranscription of rRNAs (28S, 18S and 5.8S)
- CTranscription of tRNA, 5 srRNA and snRNA
- DTranscription of precursor of mRNA
Correct answer
C. Transcription of tRNA, 5 srRNA and snRNA
Step-by-step solution
Transcription in eukaryotes are complex process and involves at least three different DNA-dependent RNA polymerases:
- The RNA polymerase I transcribes rRNAs of 28S, 18S, and 5.8S types,
- The RNA polymerase II transcribes precursor of mRNA, the heterogeneous nuclear RNA (hnRNA).
- RNA polymerase III is responsible for transcription of tRNA, 5srRNA, and snRNAs (small nuclear RNAs)