title: Correlation between ultrastructural aspect of nucleoli and inhibition of ribosomal RNA synthesis in Xenopus laevis oocytes.
mesh_terms: D000818:Animals; D002466:Cell Nucleolus; D005260:Female; D008854:Microscopy, Electron; D010063:Ovum / Q000166:cytology* / Q000254:growth & development / Q000378:metabolism; D012335:RNA, Ribosomal / Q000096:biosynthesis*; D014981:Xenopus
chemical_list: D012335:RNA, Ribosomal