Q. 21. What are the functions of
(i) methylated guanine cap?
(ii) poly-A 'tail' in a mature on RNA?
(i) methylated guanine cap helps in binding of mRNA to smaller ribosomal sub-unit during initiation of translation.
(ii) Poly-A tail provides longevity to mRNA's life. Tail length longevity of mRNA are positively correlated.
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