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Amino acids can be classified as alpha-,...

Amino acids can be classified as `alpha-, beta-, gamma-, delta-` and so on depending upon the relative position of amino group with respect to carboxyl group. Which type of amino acids form polypetide chain in proteins?

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`alpha`-Amino acids `(H_(2)N - overset(C)HR - COOH)` form polypeptide chains in proteins
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