Two amino acids are attached due to which bond:

Explanation

The correct answer is the 'Peptide bond.' Peptide bonds are the primary linkages formed between amino acids in a protein chain, specifically between the carboxyl group of one amino acid and the amino group of another amino acid. This covalent bond is crucial in forming the primary structure of proteins.Disulfide bonds, on the other hand, are involved in stabilizing the tertiary and quaternary structures of proteins by linking different parts of a single polypeptide or different polypeptides, but they do not form the main chain of amino acids.Glycoside bonds are involved in carbohydrate structures, not proteins. Hydrogen bonds play a role in the secondary and tertiary structures by linking different parts of the same or different polypeptide chains but are not responsible for the primary sequence of amino acids.