Umbilical Cord Blood Stem Cells and Placental Stem Cells: Stem cells can also be isolated from the umbilical cord blood and placenta. Cord blood is found to be rich source of stem cells. They are multi potent in nature. Further based on their capacity to divide and differentiate they may be totipotent, pluripotent or Multipotent. Totipotent stem cells give rise to all different types of stem cells in the body including a living organism e.g. fertilized egg. Pluripotent stem cells give rise to any type of cell except those required to form a foetus. Multipotent stem cell gives rise to specific different type of cells.