title: Formation of deletion mutations in recombination-deficient mutants of Escherichia coli.
mesh_terms: D003087:Colicins; D004352:Drug Resistance, Microbial; D004926:Escherichia coli / Q000187:drug effects*; D009154:Mutation; D011995:Recombination, Genetic
chemical_list: D003087:Colicins