Question
Biology Question on the molecular basis of inheritance
What is the role of RNA polymerase III in the process of transcription in Eukaryotes?
A
Transcription of tRNA, 5 srRNA and snRNA
B
Transcription of precursor of mRNA
C
Transcription of only snRNAs
D
Transcription of rRNAs (28S, 18S and 5.88)
Answer
Transcription of tRNA, 5 srRNA and snRNA
Explanation
Solution
RNA polymerase III is responsible for transcribing small functional RNAs, including transfer RNAs (tRNAs), 5S ribosomal RNA (rRNA), and some small nuclear RNAs (snRNAs). It does not transcribe mRNA precursors or the large rRNA subunits (28S, 18S, and 5.8S) as mentioned in option (D).
Therefore, The correct option is (A): Transcription of tRNA, 5 srRNA and snRNA