title: Cytoplasmic giant RNA in sea urchin embryos. II. Physicochemical characterization.
mesh_terms: D000818:Animals; D002458:Cell Fractionation; D002467:Cell Nucleus / Q000032:analysis; D002499:Centrifugation, Density Gradient; D002845:Chromatography; D003593:Cytoplasm / Q000032:analysis; D004591:Electrophoresis, Polyacrylamide Gel; D004625:Embryo, Nonmammalian / Q000032:analysis; D008970:Molecular Weight; D010761:Phosphorus Radioisotopes; D012335:RNA, Ribosomal / Q000032:analysis*; D012617:Sea Urchins / Q000032:analysis* / Q000196:embryology; D014316:Tritium; D014529:Uridine
chemical_list: D010761:Phosphorus Radioisotopes; D012335:RNA, Ribosomal; D014316:Tritium; D014529:Uridine