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 $hn$RNA. This is known as

A) Capping
B) Tailing
C) Splicing
D) Termination
Explanation

Heterogenous nuclear RNA ($hn\$RNA) undergo two additional processing known as capping and tailing. In capping an unusual nucleotide (methyl guanosine triphosphate) is added to the 5’ end of hnRNA. In tailing, adenylate residues (200-300) are added a 3’ end in template independent manner. In splicing, introns are removed and exons are joined in a definite order.

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.