Europe PMC

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Abstract 


The introduction of new techniques of prenatal diagnosis in the 1960s transformed already back then, and continues to transform, the epistemic space of human heredity. These techniques - like karyotyping, amniocentesis, obstetrical ultrasound, and, more recently, analysis of free foetal DNA in maternal blood - modify the way in which people influence the transmission of traits to their offspring and thus have the potential to define what a "normal," "acceptable," or "valuable" human being is.