The number of disulphide bonds present in between the A and B chains of insulin are

One

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Two

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Three

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Four

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Solution

The correct option is C
Explanation of the correct option:

An active insulin molecule has three disulphide bonds, two between A-peptide and B-peptide and the third within the A-peptide. Disulphide bonds are formed between cysteine residues of peptide chains and help in stabilizing the three dimensional structure of the proteins.

Final answer: The number of disulphide bonds present in between the A and B chains of insulin are Three..

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