WHAT IS STEM CELL?
A stem cell is a kind of cells that has the
capacity to renew itself and give rise to specialized cell types.
Although other organ cells such as heart cells or liver cells
are conducting a specific function, a stem cell is un commited
and it remains uncommited untill it receives a signal to develop
into a specialized cell.The process by which dividing ,unspecialized
cells are equipped to perform spesific functions muscle contraction
or nevre cell communication ,for example is called differantiation
.Their proliferative capacity combined with the ability to become
specislized makes them unique. We know that stem cells,in various
forms,can be obtained from the embryo,fetus and the adult.