What happens in the tailing process of transcription?
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a
Adenylate residues added at 5' end of RNA
b
Adenylate residues added at 3' end of RNA
c
Guanylate residues added at 5' end of RNA
d
Guanylate residues added at 3' end of RNA
answer is B.
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Detailed Solution
In tailing, adenylate residues (200-300) are added at 3'-end in a template independent manner. It is the fully processed hnRNA, now called mRNA, that is transported out of the nucleus for translation.