Read this article for insight about how difficult it is to really determine the precise relation between genes and behavior. Also note in your reading that the contribution of the environment to gene expression must be figured into any analysis of genes and behaviors. Lots of ethical issue in this one. Compelling evidence is accumulating in support of the idea that homosexuality has a genetic basis. This article summarizes important new research findings.
Many people are concerned with their weight and the levels of fat in their bodies.
Read this for some interesting info on growing organs for human use. Americans take great pride in their freedom to make choices. Well, fertility clinics can add to the menu of reproductive choices available to a couple or individual.