12th Class Biology Molecular basis of inheritance

  • question_answer 74)   What are the functions of (i) methylated guanine cap? (ii) poly-A 'tail' in a mature on RNA?

    Answer:

                      (i) Methylated guanine cap helps in binding of mRNA to smaller ribosomal sub-unit during initiation of translation. (i) Poly-A tail provides longevity to mRNA's life. Tail length and longevity of mRNA are positively correlated.

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