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The polypeptide chains present in insulin is connected by _______ bonds.

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in Biology – Class 12 by (271k points)
The polypeptide chains present in insulin is connected by _______ bonds.

(a) ionic

(b) covalent

(c) disulphide

(d) hydrophobic interactions

This question was posed to me in an internship interview.

This question is from Biotechnological Applications in Medicine: Genetically Engineered Insulin topic in division Biotechnology and its Applications of Biology – Class 12

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The correct option is (c) disulphide

The best explanation: The polypeptide chains present in insulin is connected by disulphide bonds. These disulphide bonds are formed between two cysteine residues. In total insulin consists of 3 disulphide bonds.

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