8 Surprising Facts About Parenting, Genes and What Really Makes Us Who We Are - Huffington Post

8 Surprising Facts About Parenting, Genes and What Really Makes Us Who We Are Huffington Post In 1990, Thomas J. Bouchard, Jr. and his colleagues at the University of Minnesota published a striking finding: About 70 percent of the variance in IQ found in their particular sample of identical twins was found to be associated with genetic ...