title: Physico-chemical description of a condensed form of DNA.
mesh_terms: D002499:Centrifugation, Density Gradient; D055598:Chemical Phenomena; D002621:Chemistry; D003090:Coliphages; D004269:DNA, Bacterial; D004279:DNA, Viral; D004926:Escherichia coli; D006863:Hydrogen-Ion Concentration; D009690:Nucleic Acid Conformation; D013057:Spectrum Analysis; D014466:Ultraviolet Rays
chemical_list: D004269:DNA, Bacterial; D004279:DNA, Viral