title: Cell division and determination of the dorsal lip in Rana pipiens embryos.
mesh_terms: D000818:Animals; D001345:Autoradiography; D002455:Cell Division / Q000528:radiation effects; D004247:DNA / Q000096:biosynthesis; D005260:Female; D005306:Fertilization; D008938:Mitosis; D010063:Ovum / Q000166:cytology / Q000528:radiation effects; D011830:Radiation Effects; D011894:Rana pipiens / Q000196:embryology*; D013936:Thymidine / Q000378:metabolism; D014316:Tritium; D014466:Ultraviolet Rays
chemical_list: D014316:Tritium; D004247:DNA; D013936:Thymidine