Stem Cells

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Adult Stem Cells

  • Obtained from body tissues of an adult
  • Obtained with a simple operation - little risk, lots of discomfort
  • Not as flexible as embryonic stem cells
  • Can only develop in a limited range of cells
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Embryonic Stem Cells

  • Obtained from early embryos
  • IVF
  • Egg and sperm are fertilised outside the womb
  • Stem cells are removed from 4-5 day old embryos
  • The rest of the embyro is destroyed
  • Develop into all types of specialised cells
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