title: On the asymmetry of lambda integration sites.
mesh_terms: D001710:Biotin / Q000378:metabolism; D003090:Coliphages; D004926:Escherichia coli; D005690:Galactose / Q000378:metabolism; D005809:Genes, Regulator; D008242:Lysogeny; D011995:Recombination, Genetic; D014161:Transduction, Genetic
chemical_list: D001710:Biotin; D005690:Galactose