title: Genetic mapping of the regulator and operator genes of the lac operon.
mesh_terms: D002874:Chromosome Mapping; D003433:Crosses, Genetic; D004926:Escherichia coli; D005809:Genes, Regulator; D005827:Genetics, Microbial; D005838:Genotype; D007785:Lactose; D009154:Mutation; D009876:Operon; D011995:Recombination, Genetic
chemical_list: D007785:Lactose