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Stem Cell
Backgrounder – PDF
Version 
Stem cells have the remarkable potential to develop into many
different cell types in the body. Serving as a sort of repair system
for the body, they can theoretically divide without limit to replenish
other cells as long as the person or animal is still alive. When a
stem cell divides, each "daughter" cell has the potential to either
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...
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Gene
Transfer Backgrounder –
PDF Version
Human gene transfer is the process of
transferring genetic material (DNA or RNA) into a person. This experimental
technique is being studied to see whether it could treat certain health
problems by either compensating for defective genes, prompting the
body to make a potentially therapeutic substance, or triggering the
immune system to fight disease. This type of experimentation is sometimes
called "gene therapy" research... full
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