What does it mean to find a gene or set of genes that are associated with ADHD, schizophrenia, or autism? Could we eradicate such diseases from our species through gene therapy? Is it possible to eradicate from our genome the genetic material that predisposes us to be too aggressive, too shy, less intelligent, or not active enough? Who has the political power and/or moral authority to make these decisions? The premise of Nature and Nurture is that the complexity of the transactions between nature and nurture--between genes and the environment from the cellular to the cultural level--make...

Julio Morales describes the Puerto Rican nation as being comprised of those individuals who identify themselves as Puerto Ricans. This includes almost 6. 2 million people who live primarily, but not exclu- sively, on the island of Puerto Rico, and in the northeastern United States. One gets to be a Puerto Rican by various means. You are Puerto Rican if you are born in Puerto Rico, although at the same time you are an American because you were born there. You are Puerto Rican if your parents are Puerto Rican, even if you have never visited the island, have never eaten arroz y habichuelas, and...