Question

eukaryotic transcription require 3 RNA polymerase why?

Answer 1

Explanation:

RNA polymerase Eukaryotes have three nuclear RNA polymerases, each with distinct roles and properties. messenger RNA (mRNA), most small nuclear RNAs (snRNAs), small interfering RNA (siRNAs) and microRNA (miRNA). RNA polymerase I (Pol I) catalyses the transcription of all rRNA genes except 5S.

Answer 2

eukaryotic transcription requires 3 RNA polymerase because:

• In eukaryotic cells, three nuclear RNA polymerase carry out the transcription from DNA to RNA, and they all seem to have developed from a single enzyme.
• Distinct RNA polymerases are credible for the transcription of genes encoding ribosomal and transfer RNAs in eukaryotic cells. All three RNA polymerases, yet, require additional transcription components to correlate with reasonable promoter sequences.
• Rather than binding directly to promoter sequences, eukaryotic RNA polymerases require to interact with a species of different proteins to mainly initiate transcription.
• Transcription in eukaryotic cells is regulated by three RNA polymerases. RNA polymerase I synthesise abundant rRNAs, RNA polymerase II transcribes all mRNAs and numerous non-coding RNAs. RNA polymerase III is also found in the nucleus. This polymerase transcribes a category of structural RNAs that comprises the 5S-rRNA, transfer tRNAs, and small nuclearRNAs.