title: Studies of the stimulation by helper of lambda site-specific recombination in lytic crosses.
mesh_terms: D003090:Coliphages / Q000254:growth & development*; D003433:Crosses, Genetic; D005796:Genes; D006378:Helper Viruses / Q000254:growth & development*; D008242:Lysogeny; D009154:Mutation; D011995:Recombination, Genetic; D013696:Temperature; D014779:Virus Replication