title: Studies on the secondary structure of intraphage T-7 DNA.
mesh_terms: D003090:Coliphages / Q000032:analysis*; D004279:DNA, Viral / Q000032:analysis* / Q000302:isolation & purification; D006361:Heating; D008854:Microscopy, Electron; D009690:Nucleic Acid Conformation; D009691:Nucleic Acid Denaturation; D009996:Osmotic Fragility; D013053:Spectrophotometry
chemical_list: D004279:DNA, Viral