title: The nucleolus and ribosomal RNA synthesis in mammalian cells.
mesh_terms: D000818:Animals; D002247:Carbon Isotopes; D002286:Carcinoma, Ehrlich Tumor / Q000378:metabolism; D002466:Cell Nucleolus / Q000378:metabolism*; D002499:Centrifugation, Density Gradient; D003609:Dactinomycin / Q000494:pharmacology; D008099:Liver / Q000378:metabolism; D009698:Nucleoproteins / Q000032:analysis; D010636:Phenols / Q000494:pharmacology; D010759:Phosphorus Isotopes; D012313:RNA / Q000096:biosynthesis*; D051381:Rats; D012270:Ribosomes / Q000378:metabolism; D014316:Tritium; D014529:Uridine / Q000378:metabolism
chemical_list: D002247:Carbon Isotopes; D009698:Nucleoproteins; D010636:Phenols; D010759:Phosphorus Isotopes; D014316:Tritium; D003609:Dactinomycin; D012313:RNA; D014529:Uridine