In eukaryotes, the primary transcript hnRNA is converted to mature mRN…

Question

In eukaryotes, the primary transcript hnRNA is converted to mature mRNA by capping, tailing and splicing. What is added in capping?

Accepted Answer

C. {'text': "Methyl guanosine triphosphate at the 5' end", 'label': 'C'}

Capping adds an unusual nucleotide, methyl guanosine triphosphate, to the 5' end of hnRNA. Tailing adds 200-300 adenylate residues at the 3' end in a template-independent manner. Splicing removes introns.

Answer

{'text': 'A poly-A tail of 200-300 adenylates', 'label': 'A'}

Answer

{'text': "An intron at the 5' end", 'label': 'B'}

Answer

{'text': "Methyl guanosine triphosphate at the 3' end", 'label': 'D'}