ANDY CRUMP / SCIENCE PHOTO LIBRARY ANDY CRUMP / SCIENCE PHOTO LIBRARY
Fibroblast stem cells, light micrograph. Fibroblasts are cells that form connective tissue. A stem cell is an undifferentiated cell that can produce other types of cell when it divides. Medical researchers believe that eventually it will be possible to manufacture new tissues and organs from stem cells. Fibroblast stem cells would be used to grow new connective tissue.
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