Using twin and adoption studies, behavior geneticists can mathematically estimate the degree to which variation among individuals can be attributed to their differing genes. The concept is heritability, the extent to which genes predispose certain...
DNA is a blueprint that determines our physical make up and influences the way we think and feel The transmittal of genes from parent to child occurs with very few "mistakes." Your DNA is 99.9% the same as your friend's, and 99% the same as a chimpa...