title: On the mechanism of variation in Escherichia coli mutabile.
mesh_terms: D003470:Culture Media; D004926:Escherichia coli / Q000254:growth & development / Q000378:metabolism; D014644:Genetic Variation; D005947:Glucose / Q000378:metabolism; D007785:Lactose / Q000378:metabolism; D009154:Mutation
chemical_list: D003470:Culture Media; D005947:Glucose; D007785:Lactose