Which bond links two amino acids in a protein?
Answer and explanation
Correct answer: C. A peptide bond, formed by condensation between a carboxyl group and an amino group
- Step 1: Amino acids join end to end in the polypeptide backbone. Step 2. The carboxyl of one reacts with the amino group of the next, releasing water. Answer: peptide bond. Why not the others: glycosidic bonds join sugars, phosphodiester bonds join nucleotides, and disulfide bridges link side chains rather than make the backbone.
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