This occurs mainly under the control of maternally provided factors, and generates embryonic cells that get exponentially smaller and more numerous at each division. Once enough cells are ...
If cells are removed from the embryo they will differentiate into any cell type. These are called embryonic stem cells. Some stem cells remain in the bodies of adults as adult stem cells.
A cell division resembling that of an animal embryo has been observed in a prehistoric unicellular organism, suggesting that embryonic development might have existed prior to the evolution of animals.
we found that the pace/length of cell cycle is under tight control by fate throughout the embryo: fate differentiaiton creates small but reproducible differences in division timing among cells that ...