In Glycin an amino acid R group is replaced by____________?
Correct answer: A. H
- A. H
- B. CH3
- C. COOH
- D. C = O
Explanation
Glycine is the simplest amino acid because its side, or R, group is a hydrogen atom, giving it the structure NH2-CH2-COOH. Students may choose CH3 because alanine has a methyl R group, not glycine.
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