Stories about: fetal DNA

Fetal DNA tests: Are we finally entering an era of eugenics?

Eugenics, 1919. (Photo: A.M. Kuchling/Flickr)

As an Ashkenazi Jew planning to have a baby, I sure as heck wanted carrier screening for Tay-Sachs disease. But that disease is incurable and lethal. What about diseases that don’t severely limit lifespan and aren’t that disabling? During my pregnancy, I went on to have amniocentesis, which included testing for Down syndrome and – because of my family history — for a few genes associated with autism and mental retardation. But even as I was tested, I had no idea what I’d do if results came back positive.

Sometime soon, almost every expectant family may be faced with such life-and-death decisions. New tests are arriving that can detect Down syndrome by analyzing fetal DNA in the mother’s blood during the first trimester of pregnancy.

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