title: Lac-plus plasmids are responsible for the strong lactose-positive phenotype found in many strains of Klebsiella species.
mesh_terms: D002874:Chromosome Mapping; D002876:Chromosomes, Bacterial; D004926:Escherichia coli / Q000201:enzymology; D005111:Extrachromosomal Inheritance; D005696:Galactosidases / Q000378:metabolism; D005827:Genetics, Microbial; D007709:Klebsiella / Q000201:enzymology*; D007785:Lactose; D009876:Operon; D010641:Phenotype
chemical_list: D005696:Galactosidases; D007785:Lactose