title: The nucleolus, chromosomes, and visualization of genetic activity.
mesh_terms: D000663:Amphibians / Q000235:genetics; D000818:Animals; D002466:Cell Nucleolus / Q000502:physiology*; D002875:Chromosomes / Q000378:metabolism* / Q000648:ultrastructure; D003593:Cytoplasm / Q000032:analysis; D004247:DNA; D005784:Gene Amplification; D005796:Genes; D006801:Humans; D007313:Insecta / Q000235:genetics; D009697:Nucleolus Organizer Region; D012313:RNA / Q000032:analysis; D012335:RNA, Ribosomal / Q000235:genetics*; D012091:Repetitive Sequences, Nucleic Acid; D014158:Transcription, Genetic
chemical_list: D012335:RNA, Ribosomal; D012313:RNA; D004247:DNA