hn-RNA undergoes two additional processing. In one of them an unusual nucleotide (methyl guanosine triphosphate) is added to the 5'-end of hnRNA. What is this known as?
A
Capping
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B
Tailing
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C
Splicing
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D
Termination
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Solution
The correct option is A Capping The 5' cap is a specially altered nucleotide on the 5' end of precursor messenger RNA and some other primary transcripts as found in eukaryotes. The process of 5' capping is vital to creating mature messenger RNA, which is then able to undergo translation. Capping ensures the messenger RNA's stability while it undergoes translation in the process of protein synthesis.