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10. Biomolecules — Chemistry STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceChemistry10. Biomolecules1 Mark
MCQ
Which $\alpha$  amino acid can cross link peptide chains
  • A
    Serine
  • ✓
    Cysteine
  • C
    Glutamine
  • D
    Tyrosine
✓

Answer

Correct option: B.
Cysteine
b
In some proteins, the linear polypeptide chain is cross-linked. The most common cross-links are disulfide bonds, formed by the oxidation of a pair of cysteine residues 

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