This is old news for geneticists. Since Mendel and Punnet we've known that a.) traits don't average or "mix" from parent to child and b.) individual traits don'

This is old news for geneticists. Since Mendel and Punnet we've known that a.) traits don't average or "mix" from parent to child and b.) individual traits don't assort randomly. In a more modern context, the Human HapMap project (http://hapmap.ncbi.nlm.nih.gov http://hapmap.ncbi.nlm.nih.gov) is working on mapping out just how many different assorting groups exist among human genes.