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What is the Difference b/w Totipotent and pluripotent stem cells?
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Totipotency is the ability of a single cell to divide and produce all the differentiated cells in an organism,
including extraembryonic tissues. Totipotent cells formed during sexual and asexual reproduction include spores and zygotes.the definition of pluripotency has come to refer to a stem cell that has the potential to differentiate into any of the three germ layers: endoderm (interior stomach lining, gastrointestinal tract, the lungs), mesoderm (muscle, bone, blood, urogenital), or ectoderm (epidermal tissues and nervous system). Pluripotent stem cells can give rise to any fetal or adult cell type. However, alone they cannot develop into a fetal or adult animal because they lack the potential to contribute to extraembryonic tissue, such as the placenta.
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Monday, September 24, 2007
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