title: Molecular basis of biological specificity.
mesh_terms: D000906:Antibodies; D000941:Antigens; D004247:DNA / Q000266:history; D006666:History of Medicine; D008967:Molecular Biology / Q000266:history*; D008968:Molecular Conformation; D009690:Nucleic Acid Conformation; D014481:United States
chemical_list: D000906:Antibodies; D000941:Antigens; D004247:DNA