GCSE Biology (AQA)

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Therapeutic Cloning

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Cell Biology Cell Division

Therapeutic Cloning

2:35 Stem Cell Uses and Risks
Spec 4.1.2.3
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  • Donor stem cells may be rejected by the patient's immune system.
  • Patients might need to take immunosuppressants, which weaken the immune system, to prevent rejection.
  • Therapeutic cloning creates an embryo with the same genes as the patient, preventing stem cell rejection.
  • Embryonic stem cells from therapeutic cloning could be used for medical treatments but are currently only used in research.
  • Therapeutic cloning involves removing the nucleus from a patient's cell (e.g., skin cell) and a donor egg cell.
  • The nucleus from the patient's cell is then transferred to the donor egg cell, creating a combined cell.
  • This combined cell is stimulated to divide into an embryo using an electric shock.
  • The embryo is never fertilized.
  • Stem cells are extracted from the embryo, cultured in a Petri dish, and can be made to differentiate into any needed cell type.
  • Potential applications include creating pancreatic cells for diabetes treatment or nerve cells for treating paralysis.

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