Question

In the processing of eukaryotic hn RNA, during protein synthesis tailing involves .......... of RNA.

• A. Addition of adenylate residues at $3^{\prime }$ end
• B. Addition of methyl guanosine triphosphate at $3^{\prime }$ end
• C. Addition of methyl guanosine triphosphate at $5$' end
• D. Removal of introns

Answer 1

The correct option is A Addition of adenylate residues at $3^{\prime }$ end

• Eukaryotic hnRNA undergoes splicing, capping and tailing to form mRNA. mRNA undergoes translation for protein synthesis.
• Tailing involves the addition of adenylate residues at 3' end for provides stability.
• So, the correct option is 'Addition of adenylate residues at 3' end'.