> what genes play a factor in IQ? All of them play a little bit (majority of quantitative differences) and some of them play a lot (when there are significant

> what genes play a factor in IQ? All of them play a little bit (majority of quantitative differences) and some of them play a lot (when there are significant qualitative differences). https://www.youtube.com/watch?v=eVSbFAcBAyw https://www.youtube.com/watch?v=eVSbFAcBAyw