title: Nucleolar ontogenesis in the uterine chick germ correlated with morphogenetic events.
mesh_terms: D000818:Animals; D002466:Cell Nucleolus / Q000648:ultrastructure; D002467:Cell Nucleus / Q000648:ultrastructure; D002642:Chick Embryo; D002843:Chromatin / Q000648:ultrastructure; D005260:Female; D009024:Morphogenesis; D011132:Polyribosomes / Q000648:ultrastructure; D012335:RNA, Ribosomal / Q000096:biosynthesis; D015053:Zygote / Q000378:metabolism / Q000648:ultrastructure*
chemical_list: D002843:Chromatin; D012335:RNA, Ribosomal