Preimplantation Genetic Diagnosis

A revolutionary genetic test for "perfect" babies

British scientists developed a revolutionary test that will allow future parents to test their embryos for almost all known genetic diseases. However, this important scientific accomplishment raises the fear of creating a world of "perfect babies".

Until today, existed only pre-implantation genetic diagnosis (PGD), a technique that was developed in 1989. PGD allows the diagnosis of only 2% of the 15000 known genetic diseases and it is time consuming since scientists have to trace the exact genetic mutation that a family carries and then develop a test for it. The new technique called karyomapping is based on the same procedure (it was developed by the same doctor) but it can detect at embryos all known genetic diseases only within a few weeks (the only exceptions are those that appear suddenly due to an accidental mutation).

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