title: Isolation of amplified nucleoli from Xenopus oocytes.
mesh_terms: D000818:Animals; D002458:Cell Fractionation / Q000379:methods; D002466:Cell Nucleolus; D002499:Centrifugation, Density Gradient; D004247:DNA / Q000302:isolation & purification; D005260:Female; D008793:Metrizamide; D009865:Oocytes / Q000378:metabolism / Q000648:ultrastructure*; D010063:Ovum / Q000648:ultrastructure*; D012270:Ribosomes / Q000032:analysis; D014981:Xenopus
chemical_list: D004247:DNA; D008793:Metrizamide