Have we found the genetic basis for intelligence?

To date, geneticists have identified plenty of genetic markers that are correlated with intelligence. Taken individually, however, these account for a paltry 1% of the variation in IQ scores. But now, an international team of scientists has identified a set of genes that appear to amplify each other's effects —… » 6/26/12 10:37am 6/26/12 10:37am