title: The cross-linking of DNA by ultraviolet radiation.
mesh_terms: D002499:Centrifugation, Density Gradient; D055598:Chemical Phenomena; D002627:Chemistry, Physical; D004269:DNA, Bacterial / Q000528:radiation effects*; D004926:Escherichia coli; D006193:Haemophilus influenzae; D006863:Hydrogen-Ion Concentration; D009691:Nucleic Acid Denaturation; D011830:Radiation Effects; D012486:Salmonella typhimurium; D013053:Spectrophotometry; D013696:Temperature; D014170:Transformation, Genetic; D014466:Ultraviolet Rays
chemical_list: D004269:DNA, Bacterial