title: DNA-strand breaks in two strains of Escherichia coli after exposure to  -rays.
mesh_terms: D000596:Amino Acids / Q000096:biosynthesis; D002470:Cell Survival; D002701:Chloramphenicol / Q000494:pharmacology; D003036:Cobalt Isotopes; D004260:DNA Repair; D004269:DNA, Bacterial / Q000096:biosynthesis / Q000528:radiation effects*; D004926:Escherichia coli / Q000187:drug effects / Q000378:metabolism / Q000528:radiation effects*; D008722:Methods; D011830:Radiation Effects
chemical_list: D000596:Amino Acids; D003036:Cobalt Isotopes; D004269:DNA, Bacterial; D002701:Chloramphenicol