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    Stem cells have the remarkable potential to develop into many different cell types in the body during early life and growth. In addition, in many tissues they serve ......
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    30 Mar 2009 ... Induced pluripotent stem cells (iPSCs) are adult cells that have been genetically reprogrammed to an ......
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    2011年1月20日 - Embryonic stem cells can become all cell types of the body because they are pluripotent. Adult stem cells are thought to be limited to ......
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    5 天前 - Embryonic stem cells have a greater potential for treating disease than do adult stem cells. The chance for rejection is, however, higher with ......
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    2012年6月7日 - An adult stem cell is thought to be an undifferentiated cell, found among differentiated cells in a tissue or organ. The adult stem cell can renew ......
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    What is the difference between sweet potatoes and yams? Everyday Mysteries: Fun Science Facts from the Library of Congress ... Related Web Sites 5 a day: Vegetable of the month: Sweet potato - Centers for Disease ......
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    An embryo is a multicellular diploid eukaryote in its earliest stage of development, from the time of fertilization until birth, hatching, or germination. In humans, an embryo is generally considered to be between the first and the eighth week of developm...
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    ? The developing organs and tissues in a fetus contain a relatively large supply ......