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The polypeptide chains present in insulin is connected by _______ bonds.(a) ionic(b) covalent(c) disulphide(d) hydrophobic interactionsThis 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

Answer»

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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