Question
Biology Question on the molecular basis of inheritance
Which one of the following process occurs inside the nucleus during protein synthesis in a eukaryotic cells ?
A
Processing of hnRNA
B
Activation of amino acids
C
Translation
D
Formation of polypeptide chain
Answer
Processing of hnRNA
Explanation
Solution
In eukaryotic cells, the primary mRNA is nonfunctional and is called heterogenous nuclear RNA (hnRNA). To make it functional- or ready for protein synthesis, hnRNA processing occurs inside the nucleus. Processing of hnRNA includes splicing of introns, capping at 5' end of hnRNA with methyl guanosine triphosphate and tailing at 3' end with adenylate residues.