title: Sedimentation velocity properties of catenated DNA molecules from HeLa cell mitochondria.
mesh_terms: D002478:Cells, Cultured; D004247:DNA / Q000032:analysis*; D006367:HeLa Cells / Q000032:analysis*; D008854:Microscopy, Electron; D008928:Mitochondria / Q000032:analysis*; D011108:Polymers / Q000032:analysis
chemical_list: D011108:Polymers; D004247:DNA