Animals consist of many distinct cell types, all of which originate during development from a single cell: the fertilized egg. To generate this vast cellular diversity, the egg and its descendants must divide unevenly to produce new cells with different fates. Nowhere is this process more important than in the central nervous system, where the asymmetric division of neural stem cells called neuroblasts contributes to the profusion of neurons and glial cells.
View the original article here: Central nervous system stem cells shed light on mechanism that controls … – Phys.Org
