Question
Biology Question on Molecular Basis of Inheritance
What is the role of RNA polymerase III in the process of transcription in eukaryotes
A
Transcribes only snRNAs
B
Transcribes rRNAs (28S, 18S and 5.8S)
C
Transcribes tRNA, 5s rRNA and snRNA
D
Transcribes precursor of mRNA
Answer
Transcribes tRNA, 5s rRNA and snRNA
Explanation
Solution
RNA polymerase III is responsible for transcribing a variety of small RNA molecules, including transfer RNA (tRNA), 5S ribosomal RNA (5S rRNA), and small nuclear RNAs (snRNA), among others. It is not responsible for transcribing the precursor of mRNA, which is primarily the role of RNA polymerase II.
So, the correct option is (C): Transcribes tRNA, 5s rRNA and snRNA