Answer:
Stem cells may be defined as the potipotent cells that has the ability to differentiate into different cells. The stem cells are now used in research as well.
The main purpose of the stem cells are as follows:
The damaged tissue or organ can be replaced by growing stem cells in the laboratory.
The genetic defects can be corrected by the stem cells discovery.
The new drugs can be tested on the stem cell.
The reason of the development of specific cancer cells.