title: Amplification of ribosomal DNA in Acheta. VI. Ultrastructure of two types of nucleolar components associated with ribosomal DNA.
mesh_terms: D000818:Animals; D002466:Cell Nucleolus / Q000032:analysis; D002875:Chromosomes / Q000032:analysis; D004247:DNA / Q000032:analysis*; D005260:Female; D007313:Insecta / Q000032:analysis*; D008854:Microscopy, Electron; D010053:Ovary / Q000032:analysis* / Q000166:cytology; D012270:Ribosomes / Q000032:analysis*
chemical_list: D004247:DNA