Each amino acid is differentiated by its:

Responses

-R group
-R group

Amino group
Amino group

Peptide
Peptide

Carboxyl group
Carboxyl group

1 answer

Each amino acid is differentiated by its R group (also known as the side chain). The R group varies among different amino acids and determines their unique properties and roles in proteins.

So the correct response is: R group.