MHT CET Biology question

Read the following statements regarding insulin and choose the incorrect one.

(A)Proinsulin is made up of three polypeptide chains - A, B, C
(B)Mature insulin is made up of 51 amino acids arranged in two A and B-polypeptide chains
(C)The A and B-chains are connected by single disulphide linkagesCorrect
(D)The C-polypeptide with 33 amino acids is removed in final insulin formation

Answer: (C)

Solution

Statements (a), (b) and (d) are correct; the A and B chains are joined by two interchain

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Question ID VK-080272