title: Recombination deficient mutants of Escherichia coli K12 that map between thy A and argA.
mesh_terms: D002874:Chromosome Mapping; D003433:Crosses, Genetic; D004269:DNA, Bacterial / Q000528:radiation effects*; D004926:Escherichia coli; D009154:Mutation; D011831:Radiation Genetics; D011995:Recombination, Genetic; D014466:Ultraviolet Rays
chemical_list: D004269:DNA, Bacterial