title: Circular, repetitive DNA in yeast.
mesh_terms: D002499:Centrifugation, Density Gradient; D004247:DNA / Q000032:analysis*; D004996:Ethidium; D007700:Kinetics; D008854:Microscopy, Electron; D008970:Molecular Weight; D009690:Nucleic Acid Conformation; D009695:Nucleic Acid Renaturation; D012440:Saccharomyces / Q000032:analysis*; D012441:Saccharomyces cerevisiae / Q000032:analysis
chemical_list: D004247:DNA; D004996:Ethidium