What are the three types of RNA most important to polypeptide formation?
BIOLOGYSAT 2021
What are the three types of RNA most important to polypeptide formation?
- A. tRNA, rRNA, and miRNA
- B. mRNA, tRNA, and rRNA
- C. None of these
- D. mRNA, snRNA, and rRNA
Correct Answer: B. mRNA, tRNA, and rRNA
Explanation
The main three types of RNA necessary to create a polypeptide are messenger RNA (mRNA), ribosomal RNA (rRNA), and transfer RNA (tRNA). snRNA is also important and can help modify the primary mRNA transcript, but it is only found in eukaryotes and is not absolutely essential to polypeptide formation. Micro RNA (miRNA) is also useful for post-transcriptional modification, but plays a minor role when compared to mRNA/tRNA/rRNA.
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