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NEETZoologyMolecular Basis of Inheritance

What is the function of untranslated regions (UTRs) in mRNA?

Options

  1. ACode for a polypeptide
  2. BRequired for efficient translation process
  3. CBind to the ribosome at the start codon
  4. DCatalyze the formation of peptide bond

Correct answer

B. Required for efficient translation process

Step-by-step solution

A translational unit in mRNA is the sequence of RNA that is flanked by the start codon (AUG) and the stop codon and codes for a polypeptide. An mRNA also has some additional sequences that are not translated and are referred to as untranslated regions (UTR). The UTRs are present at both 5' -end (before start codon) and at 3' -end (after stop codon). They are required for an efficient translation process.

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