title: Insertion mutations in the control region of the Gal operon of E. coli. I. Biological characterization of the mutations.
mesh_terms: D002874:Chromosome Mapping; D004926:Escherichia coli; D005690:Galactose; D005796:Genes; D005827:Genetics, Microbial; D005838:Genotype; D009154:Mutation; D009604:Nitrosoguanidines; D009876:Operon; D010641:Phenotype; D011995:Recombination, Genetic
chemical_list: D009604:Nitrosoguanidines; D005690:Galactose