title: Using studies on tryptophan metabolism to answer basic biological questions.
authors.affiliation: Department of Biological Sciences, Stanford University, Stanford, California 94305, USA.
authors.forename: Charles
authors.initials: C
authors.lastname: Yanofsky
mesh_terms: D000739:Anecdotes as Topic; D000818:Animals; D019143:Evolution, Molecular; D009492:Neurospora crassa / Q000235:genetics / Q000378:metabolism; D009876:Operon; D014158:Transcription, Genetic; D014364:Tryptophan / Q000378:metabolism*
chemical_list: D014364:Tryptophan