In a polypeptide , amino acids are linked by
an ester bond
a hydrogen bond
a covalent bond
a peptide bond
As we have learned
Peptide Bond -
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 water (dehydration).
- wherein