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Questions  

How many of the following statements are correct regarding UTRs?
(a) Present only before the start codon
(b) Required for efficient translation process
(c) Translation begins from these sequences

a
a only
b
b only
c
a and b
d
b and c

detailed solution

Correct option is B

An mRNA also has some additional sequences that are not translated and are referred 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 efficient translation process.

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