1.

Which of the following is not an alpha-amino acid?

Answer»

`UNDERSET(NH_2)underset(|)CH_2-COOH`
`H_3C-underset(NH_2)underset(|)CH-COOH`

`H_3C-underset(NH_2)underset(|)CH-CH_2COOH`

ANSWER :D


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