The power to pick the best embryo

Nowak, Rachel
October 2003
New Scientist;10/25/2003, Vol. 180 Issue 2418, p12
Hundreds of cells have been grown from a single cell taken from an early mouse embryo. And in the future, cells taken from an embryo for testing might also provide an unlimited source of matching stem cells for treating diseases that the person might develop later in life. It is now over a decade since Alan Handyside led the team that first used pre-implantation genetic diagnosis to test embryos for genetic defects before they are implanted in their mother's womb. In Europe, there is an error rate of around three per cent, and parents who use pre-implantation tests are usually advised to have prenatal tests as well.


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