[see footnote 4 for conflicts of interest]In 2021, Genomic Prediction announced the first polygenically selected baby. When a couple uses IVF, they may get as many as ten embryos. If they only want one child, which one do they implant.
If they only want one child, which one do they implant. In the early days, doctors would just eyeball them and choose whichever looked healthiest. Later, they started testing for some of the most severe and easiest-to-detect genetic disorders like Down Syndrome and cystic fibrosis1.
Later, they started testing for some of the most severe and easiest-to-detect genetic disorders like Down Syndrome and cystic fibrosis1. The final step was polygenic selection - genotyping each embryo and implanting the one with the best genes overall. Best in what sense.