title: Mutants of bacteriophage lambda defective in vegetative genetic recombination.
mesh_terms: D003090:Coliphages / Q000528:radiation effects; D003433:Crosses, Genetic; D004926:Escherichia coli; D005815:Genetic Code; D005816:Genetic Complementation Test; D005827:Genetics, Microbial; D009154:Mutation; D011830:Radiation Effects; D011995:Recombination, Genetic; D014466:Ultraviolet Rays