There are 20 different amino acids. What makes one amino acid different from another?

Name: There are 20 different amino acids. What makes one amino acid different from another?
Brand: Quizplus
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Question

Quizplus · Accepted Answer

All amino acids have the same basic structure with an amino group, carboxyl group, and an α carbon. The only thing that makes them different from each other is the unique side chain (also called R group) that is attached to the α carbon. So, the correct answer is C) different side chains (R groups) attached to an α carbon.

There Are 20 Different Amino Acids