Simulations suggest embryo selection based on traits like height or IQ is still far off
(PHYSorg.com Medicine & Health)

There have been concerns about the idea of `designer babies` for almost as long as in vitro fertilization and technology to screen embryos for inherited disorders have existed. While the recent live births resulting from human embryonic CRISPR editing have heightened global attention to these issues, currently, the most practical approach to genetic `enhancement` of embryos is preimplantation genetic screening of IVF embryos. But according to a study publishing November 21 in the journal Cell, the ability to select for traits that are brought about by multiple genes-rather than genetic diseases caused by a single mutation-is more far off and complicated than most people probably realize.