title: Catenation and supercoiling in the products of bacteriophage lambda integrative recombination in vitro.
mesh_terms: D010582:Bacteriophage lambda; D004270:DNA, Circular; D004278:DNA, Superhelical; D004279:DNA, Viral; D004587:Electrophoresis, Agar Gel; D008854:Microscopy, Electron; D011995:Recombination, Genetic
chemical_list: D004270:DNA, Circular; D004278:DNA, Superhelical; D004279:DNA, Viral