<prompt> Amino acid which lacks chirality:LysineLeucineHistidineGlycine  <response>: All amino acids except glycine have four different groups attached to the alpha carbon. As a result, all amino acids have at least one asymmetric center the alpha carbon. We call a compound with such an arrangement chiral. The two chiral forms of amino acids are called D and L.The general formula for an amino acid is: 