What is the primary factor that differentiates one amino acid from another?

Question

Quizplus · Accepted Answer

The side group, also known as the R group, is the primary factor that differentiates one amino acid from another. Each amino acid has a unique side group that can range from a single hydrogen atom to complex structures containing multiple atoms. The central carbon atom, number of oxygen atoms, and number of nitrogen atoms are the same in all amino acids.

What Is the Primary Factor That Differentiates One Amino Acid