title: Spontaneous deletion formation in several classes of Escherichia coli mutants deficient in recombination ability.
mesh_terms: D000483:Alleles; D002869:Chromosome Aberrations; D002874:Chromosome Mapping; D003087:Colicins / Q000494:pharmacology; D003090:Coliphages / Q000254:growth & development / Q000472:pathogenicity; D004352:Drug Resistance, Microbial; D004926:Escherichia coli / Q000378:metabolism* / Q000528:radiation effects; D009154:Mutation; D011392:Proline / Q000096:biosynthesis; D011830:Radiation Effects; D011995:Recombination, Genetic; D014161:Transduction, Genetic; D014466:Ultraviolet Rays
chemical_list: D003087:Colicins; D011392:Proline