What are stem cells?

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Stem cells are cells that have not yet made a career choice. They can specialize to become many types of cells in the human body.

Stem cells appear in the human about one week after conception. Scientists are very interested in them because they have so many different uses.

Stem cells are capable of regenerating human tissues. One day, they may serve to treat all kinds of illnesses, repair tissues, and even create replacement organs. Already they are used to treat blood diseases such as leukemia. However, because of their origin, their use is very controversial.


•	Genetic disorders
•	Cloning and stem cells
•	Genetically modified organisms (GMOs)
•	DNA detectives

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	Blood stem cells (Hematopoietics) taken from an umbilical cord.


	Embryonic stem cells.

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