Question

Proteins are polymers of

• A. α-amino acids
• B. β-amino acids
• C. γ-amino acids
• D. δ-amino acids

Answer 1

The correct option is A α-amino acids

Proteins are polymers of $\alpha$-amino acids acids.
Amino acids contain amino $(-N{H}_2)$ and carboxyl $(-COOH)$ functional groups. $\alpha$-amino acids contain the $(-N{H}_2)$ group on the carbon adjacent to the $(-COOH)$ group.