Saviour siblings
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When a family has a child with a life-limiting condition, they can choose to ‘tissue match’ their new child to help its sibling:
- They go to an IVF clinic to conceive their baby in a lab.
- After three to four days, the embryo will have grown to 64 cells. It will fit on the head of a pin.
- One cell is tested to see if there is a tissue match between the embryo and the family’s sick child and, if necessary, to check that the embryo is free of genetic disorders.
- If the embryo is a tissue matc...
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