title: The effects of ultra-violet irradiation on the fertility of F+ and Hfr strains of Escherichia coli K 12 defective for the repair of damaged DNA.
mesh_terms: D002876:Chromosomes, Bacterial; D003433:Crosses, Genetic; D004269:DNA, Bacterial; D004926:Escherichia coli / Q000528:radiation effects*; D005298:Fertility; D011830:Radiation Effects; D011995:Recombination, Genetic; D014161:Transduction, Genetic; D014466:Ultraviolet Rays
chemical_list: D004269:DNA, Bacterial