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Insulin in Humans

The two polyp...

Question

The two polypeptides of human insulin linked together by

A

Hydrogen bonds

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B

Phosphodiester bond

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C

Covalent bond

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D

Disulphide bridges

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Solution

The correct option is C Disulphide bridges
Insulin is composed of two peptide chains referred to as the A chain and B chain. A and B chains are linked together by two disulfide bonds, and an additional disulfide is formed within the A chain. In most species, the A chain consists of 21 amino acids and the B chain of 30 amino acids.

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Insulin in Humans

Standard XII Biology

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