Variety among amino acids is produced due to_____________?
Correct answer: C. R group
- A. NH2 group
- B. COOH group
- C. R group
- D. All of these
Explanation
All standard amino acids have an amino group and a carboxyl group, but their variable R groups differ and produce their chemical variety. The likely alternative is “all of these,” which confuses groups shared by amino acids with the group responsible for their differences.
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