NEETZoologyMolecular Basis of Inheritance

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

Options

ATo initiate transcription
BTo regulate splicing
CTo transport mRNA from nucleus to cytoplasm
DTo enhance efficient translation

Correct answer

D. To enhance efficient translation

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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