Future studies will need to clarify the exact role of these genes in intelligence in order to obtain a more complete picture of how genetic differences lead to differences in intelligence. (sciencedaily.com)
They illustrate the important role of gene flow among populations and its potential consequences. (sciencedaily.com)
However, the exact roles of these genes in the normal state have remained unknown, as genetic knockout of these genes is lethal. (scicasts.com)