Each amino acid differs from others only by the
A) number of central carbon atoms.
B) characteristic of its R group.
C) number of its carboxyl groups.
D) number of peptide bonds in the molecule.
E) size of its amino group.

Question

Quizplus · Accepted Answer

Amino acids differ from each other by the characteristic of their R group (side chain), which determines the properties of the amino acid.

Each Amino Acid Differs from Others Only by the