Explain processing of hnRNA
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Answer:
hnRna is a polymerase 2
Explanation:
which do splicing and tailing then after protein translational continues..
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(1) Eukaryotes have split genes.
(2) Primary transcript or hnRNA is non- functional and contains both exons and introns.
(3) Processing of hnRNA results in functional m-RNA.
(4) hnRNA undergoes capping tailing and splicing
(a) Capping : Methylated guanosine tri phosphate is added to 5" end of hnRNA.
(b) Tailing: Polyadenylation take place at 3' end.
(c) Splicing: It is removal of introns.
(d) DNA ligase joins exons in a definite sequence (order).
(5) The fully processed hnRNA is called m-RNA.
(6) m-RNA comes out of the nucleus through nuclear pore for getting translated.
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