Q.
hn−RNA undergoes two additional processing. Out of which, in one of them an unusual nucleotide (methyl guanosine triphosphate) is added to the 5′-end of hnRNA. This is known as
Heterogenous nuclear RNA ( hn RNA) undergo two additional processing known as capping and tailing.
In Caping an unusual nucleotide (methyl guanosinetriphosphate) is added to the 5′ end of hn RNA. In tailing, a adcnlatc residues (200−300) are added at 3′ end in template independent manner.
In splicing, introns are removed and exons are joined in a definite order.