title: Genetic recombination: the nature of a crossed strand-exchange between two homologous DNA molecules.
mesh_terms: D001665:Binding Sites; D004247:DNA; D008956:Models, Chemical; D008961:Models, Structural; D008967:Molecular Biology; D009690:Nucleic Acid Conformation; D011995:Recombination, Genetic; D012399:Rotation
chemical_list: D004247:DNA