Crossword Clue:

an amino acid formed in the production of urea

AnswerCrossword Clue
DOPAAmino acid formed in the liver
DOPAAn amino acid
ALANINAn amino acid
LYSINEAn amino acid
ALANINEAn amino acid: Chem.
LEUCINEAn essential amino acid
PABAInitials for an amino acid.
DOPAAn amino acid, for short