What happens in the tailing process of transcription?

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Adenylate residues added at 5' end of RNA

Adenylate residues added at 3' end of RNA

Guanylate residues added at 5' end of RNA

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.

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