1.How do D -amino acids differ from L-amino acids? What
biological roles are played by peptides that contain D -amino
acids?
2.Which amino acid is technically not an amino acid?
Which amino acid contains no chiral carbon atoms?
3.For each of the following, name an amino acid in which the R
group contains it: a hydroxyl group, a sulfur atom, a second chiral
carbon atom, an amino group, an amide group, an acid group, an
aromatic ring, and a branched...