Difference between capping and tailing
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precursor of mRNA is called heterogeneous nuclear RNA (hnRNA)
hnRNA undergoes two additional process called as capping and tailing.in capping an unusual nucleotide (methyl guanosine triphosphate) is added to 5- end of hnRNA.
in tailing adenine is added .it is added to 3-end of hnRNA.
process of capping helps in recognition of mRNA by the ribosomes. and protection from RNases.
process of tailing is important in maintaining the stability of RNA,export from nucleus and translation
hnRNA undergoes two additional process called as capping and tailing.in capping an unusual nucleotide (methyl guanosine triphosphate) is added to 5- end of hnRNA.
in tailing adenine is added .it is added to 3-end of hnRNA.
process of capping helps in recognition of mRNA by the ribosomes. and protection from RNases.
process of tailing is important in maintaining the stability of RNA,export from nucleus and translation
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Explanation:
In capping, methyl guanosine triphosphate is added to the 5' end of the hnRNA. Whereas in tailing, adenylate residues (200-300) are added at the 3' end of the hnRNA.
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