Formation and migration of neuroblasts.
D000818:Animals; D000831:Animals, Newborn / Q000033:anatomy & histology; D001345:Autoradiography; D002454:Cell Differentiation; D002465:Cell Movement; D002467:Cell Nucleus / Q000378:metabolism; D002540:Cerebral Cortex / Q000166:cytology / Q000196:embryology; D002642:Chick Embryo; D006224:Cricetinae; D004247:DNA / Q000096:biosynthesis; D005865:Gestational Age; D051379:Mice; D008854:Microscopy, Electron; D008938:Mitosis; D009417:Nerve Tissue / Q000196:embryology*; D051381:Rats; D013116:Spinal Cord / Q000166:cytology / Q000196:embryology; D013936:Thymidine / Q000378:metabolism; D013997:Time Factors; D014316:Tritium
D014316:Tritium; D004247:DNA; D013936:Thymidine