1.

Two chains of amino acids in an insulin molecule are held together by __________(a) Sulfide bridges(b) Disulfide bridges(c) Peptide bond(d) Covalent linkage

Answer» Correct option is (b) Disulfide bridges

The best I can explain: When we consider amino acid sequence of bovine insulin, the two peptide chains are joined together by disulfide cross linkages.


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