title: The genetic homology of Salmonella typhimurium and Escherichia coli.
mesh_terms: D002874:Chromosome Mapping; D002876:Chromosomes, Bacterial; D003090:Coliphages; D003227:Conjugation, Genetic; D004926:Escherichia coli; D006579:Heterozygote; D006824:Hybridization, Genetic; D010641:Phenotype; D011995:Recombination, Genetic; D012486:Salmonella typhimurium; D013045:Species Specificity; D013912:Threonine / Q000378:metabolism; D013997:Time Factors; D014161:Transduction, Genetic; D014364:Tryptophan / Q000378:metabolism
chemical_list: D013912:Threonine; D014364:Tryptophan