Your cell is my cell by Nelson Lee describes a phenomenon known as Microchimerism which is the presence of a small number of cells originating from another individual and that, therefore, are genetically different individual host cells. Past ten years, many studies have shown that each of us carries in addition to its trillions of cells, all derived from a fertilized egg, a small number of foreign cells. It describes the phenomenon of microchimerism, chimerism is a mixture of genetically distinct cells in the same ...