title: Polymorphism of natural DNA.
mesh_terms: D000227:Adenine Nucleotides / Q000032:analysis; D001483:Base Sequence; D003016:Clostridium perfringens / Q000032:analysis; D003589:Cytophaga / Q000032:analysis; D004269:DNA, Bacterial; D009690:Nucleic Acid Conformation; D009711:Nucleotides / Q000032:analysis; D013329:Structure-Activity Relationship; D013942:Thymine Nucleotides / Q000032:analysis; D014961:X-Ray Diffraction
chemical_list: D000227:Adenine Nucleotides; D004269:DNA, Bacterial; D009711:Nucleotides; D013942:Thymine Nucleotides