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PUBLISHED: 1:15 PM on Wednesday, November 1, 2006
What are stem cells?
Stem cells, which have the potential to develop into many different cell types in the body, act like a repair system for the body.

They theoretically can divide without limit to replenish other cells as long as the person or animal is alive.

When a stem cell divides, each new cell has the potential either to remain a stem cell or become another type of cell with a more specialized function, such as a muscle cell, a red blood cell, or a brain cell.

Source: National Institutes of Health


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