title: Rhythmic incorporation of P 32  and C 14 -uracil in early mitotic cycles of Limnaea (mollusc) eggs.
mesh_terms: D000818:Animals; D002247:Carbon Isotopes; D005260:Female; D008938:Mitosis; D008974:Mollusca / Q000196:embryology; D010063:Ovum / Q000254:growth & development*; D010759:Phosphorus Isotopes; D012313:RNA / Q000096:biosynthesis; D014498:Uracil / Q000378:metabolism*
chemical_list: D002247:Carbon Isotopes; D010759:Phosphorus Isotopes; D014498:Uracil; D012313:RNA