Heterodox
Let’s be very clear: in vitro fertilization (IVF) results in far more zygotes than will ever be implanted. Further, pre-implantation testing means that some zygotes will be rejected. In the end, this means that millions of fertilized eggs will be discarded. That was always baked in the IVF cake. For reasons that escape me as a PhD geneticist, some people believe that the cluster of cells that we call “zygotes” are the moral equivalent of a fully...
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