1.Which of the following is an α\alphaα-amino acid?a.NH–CH2–CH2–COOH\text{NH}–\text{CH}_2–\text{CH}_2–\text{COOH}NH–CH2–CH2–COOHb.NH2–CH–COOH\text{NH}_2–\text{CH}–\text{COOH}NH2–CH–COOH (with H on the α\alphaα-carbon)c.NH2–CH2–CH2–COOH\text{NH}_2–\text{CH}_2–\text{CH}_2–\text{COOH}NH2–CH2–CH2–COOHd.CH3–CH2–CH(CH2NH2)–COOH\text{CH}_3–\text{CH}_2–\text{CH}(\text{CH}_2\text{NH}_2)–\text{COOH}CH3–CH2–CH(CH2NH2)–COOHLogin to continueOnly logged in users canattempt or see the solution.
