What type of bond links amino acids in a polypeptide or a protein?

Options

APeptide bond
BGlycosidic bond
CEster bond
DPhosphodiester bond

Correct answer

A. Peptide bond

Step-by-step solution

In a polypeptide or a protein, amino acids are linked by a peptide bond, which is formed when the carboxyl (-COOH) group of one amino acid reacts with the amino (-NH₂) group of the next amino acid with the elimination of a water moiety.

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