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Tertiary structure of protein is formed by __________

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Tertiary structure of protein is formed by __________

(a) Sulphide linkages between different amino acids

(b) Multiple chains of polypeptides held together by hydrogen bonds

(c) Peptide linkages between two amino acids

(d) Hydrogen bond formed by helical or pleated structure

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I would like to ask this question from Biomolecules-2 topic in division Biomolecules of Biology – Class 11

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Right option is (a) Sulphide linkages between different amino acids

To elaborate: Primary structure of protein is formed by peptide linkages between two amino acids. Secondary structure, i.e. α-Helix and β-Sheath, of protein is formed by hydrogen bonds. Tertiary structure of protein is formed by sulphide linkages between different amino acids Quaternary structure is formed when multiple chains of polypeptides held together by hydrogen bonds.

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