Which component makes each amino acid unique?
amino group
carboxyl group
r group
phosphate group

The best answer is R group.

An R - group is a chemical group or side chain that is found attached to the central carbon in amino acids.

All 20 amino acids share five basic characteristics among which is an R group and its their 20 different R groups that gives each amino acid its unique and individual characteristic.

The R- groups are divided into two main categories namely polar and non- polar and they are named this way due to the way they tend to react with the environment.

The answer is R group on e d g e n u i t y

links? do you have a link? i don't see anything?