EXPERT PLS SEND ANSWER URGENTLY!!!
Solution:
The correct option is (3).
In mammals including humans, insulin is synthesized as a pro-hormone which contains an extra stretch called the C peptide. Proinsulin possesses three peptide fragments - A, B, and C. It is converted into the bioactive hormone insulin by the removal of the C peptide. Mature insulin possesses only A and B chains, which means only 2 polypeptide chains. This C peptide is removed during maturation by the action of endopeptidases.
The correct option is (3).
In mammals including humans, insulin is synthesized as a pro-hormone which contains an extra stretch called the C peptide. Proinsulin possesses three peptide fragments - A, B, and C. It is converted into the bioactive hormone insulin by the removal of the C peptide. Mature insulin possesses only A and B chains, which means only 2 polypeptide chains. This C peptide is removed during maturation by the action of endopeptidases.