title: Direct selective techniques for the isolation of pyrimidine auxotrophs in yeast.
mesh_terms: D001431:Bacteriological Techniques; D005796:Genes; D005827:Genetics, Microbial; D008722:Methods; D009154:Mutation; D011743:Pyrimidines; D012440:Saccharomyces / Q000254:growth & development / Q000302:isolation & purification*; D012441:Saccharomyces cerevisiae / Q000254:growth & development / Q000302:isolation & purification
chemical_list: D011743:Pyrimidines