title: Isolation of intact individual species of single- and double-stranded RNA after fractionation by polyacrylamide gel electrophoresis.
mesh_terms: D002499:Centrifugation, Density Gradient; D004591:Electrophoresis, Polyacrylamide Gel; D004996:Ethidium; D007202:Indicators and Reagents; D008722:Methods; D008970:Molecular Weight; D012367:RNA, Viral / Q000302:isolation & purification*; D012087:Reoviridae / Q000032:analysis; D012685:Sepharose; D014508:Urea
chemical_list: D007202:Indicators and Reagents; D012367:RNA, Viral; D014508:Urea; D012685:Sepharose; D004996:Ethidium