title: Localization by situ hybridization of amplified ribosomal DNA during Xenopus laevis oocyte maturation (a light and electron microscopy study).
abstract: The presence of ribosomal DNA has been demonstrated, by light and electron microscopy study of in situ hybridization with 125I-labeled ribosomal RNA, in the Feulgen-positive bodies which appear during maturation in the cytoplasm of Xenopus laevis oocytes. The ultrastructure of these bodies is described.
mesh_terms: D000818:Animals; D004247:DNA / Q000378:metabolism*; D005260:Female; D005796:Genes; D008928:Mitochondria / Q000648:ultrastructure; D009693:Nucleic Acid Hybridization; D009865:Oocytes / Q000648:ultrastructure*; D009866:Oogenesis; D010063:Ovum / Q000648:ultrastructure*; D012335:RNA, Ribosomal / Q000096:biosynthesis*; D013997:Time Factors; D014981:Xenopus
chemical_list: D012335:RNA, Ribosomal; D004247:DNA