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What is the role of RNA polymerase III in the process of transcription in Eukaryotes?
Transcription of tRNAs
Transcription of tRNA, 5 srRNA and snRNA
Transcription of precursor of mRNA
Transcription of only snRNAs
Answers (1)
The correct option is Option 2) Transcription of tRNA, 5S rRNA, and snRNA.
RNA polymerase III is an enzyme responsible for transcribing specific types of RNA molecules in eukaryotes. Its primary role is the transcription of three major types of RNA:
tRNA (transfer RNA): tRNA molecules play a crucial role in protein synthesis by carrying specific amino acids to the ribosomes. RNA polymerase III transcribes the genes encoding tRNA molecules.
5S rRNA (5S ribosomal RNA): 5S rRNA is a component of the large ribosomal subunit involved in protein synthesis. RNA polymerase III transcribes the genes encoding 5S rRNA.
snRNA (small nuclear RNA): snRNA molecules are involved in the processing of pre-mRNA and in the assembly of spliceosomes, which are responsible for removing introns from pre-mRNA. RNA polymerase III transcribes the genes encoding snRNA.
Therefore, RNA polymerase III plays a critical role in transcribing tRNA, 5S rRNA, and snRNA, contributing to important cellular functions such as protein synthesis and RNA processing.
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