title: The study of the first and second absorption band hypochromism in natural DNA.
mesh_terms: D000818:Animals; D002417:Cattle; D004247:DNA; D004269:DNA, Bacterial; D004926:Escherichia coli; D009690:Nucleic Acid Conformation; D013056:Spectrophotometry, Ultraviolet; D013329:Structure-Activity Relationship; D013950:Thymus Gland
chemical_list: D004269:DNA, Bacterial; D004247:DNA