title: Is the presumptive notochord responsible for somite genesis in the chick?
mesh_terms: D000818:Animals; D001345:Autoradiography; D002454:Cell Differentiation; D002642:Chick Embryo / Q000254:growth & development*; D005855:Germ Layers; D066298:In Vitro Techniques; D009024:Morphogenesis; D013936:Thymidine / Q000378:metabolism; D014316:Tritium
chemical_list: D014316:Tritium; D013936:Thymidine