title: Interconversion of rec+ and rec- phenotype in lambda lysogens of Escherichia coli.
mesh_terms: D001435:Bacteriophages / Q000528:radiation effects; D003470:Culture Media; D004926:Escherichia coli / Q000254:growth & development / Q000276:immunology*; D005827:Genetics, Microbial; D008242:Lysogeny; D009154:Mutation; D011827:Radiation
chemical_list: D003470:Culture Media