title: Deletions fusing the i and lac regions of the chromosome in E. coli: isolation and mapping.
mesh_terms: D002869:Chromosome Aberrations; D002874:Chromosome Mapping; D004926:Escherichia coli; D005796:Genes; D005827:Genetics, Microbial; D007785:Lactose; D009876:Operon; D013489:Suppression, Genetic
chemical_list: D007785:Lactose