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Question:

In a protein molecule, various amino acids are linked together by:

β-glycosidic bond

α-glycosidic bond

dative bond

peptide bond

Solution:

In a protein molecule, various amino acids are linked together by a peptide bond. A peptide bond or peptide linkage is an amide formed between -COOH and NH2 group by elimination of a water molecule. The peptide bond or linkage is –C||O–NH–