Already it has been reported, that there may be genetic predispositions for alcoholism, violence, and even sexual orientation.
Some people believe that much of our personality and behavior is genetically determined.
This question came to the fore in 1993 when Dean Hammer and his team at the National Cancer Institute announced they had found a genetic predisposition for homosexuality. The news was welcomed by many gay rights groups who felt that if homosexuality was written in their genes then it must be seen as natural, and not a moral choice. If it was part of their bodily makeup, so to speak, then in could not be a sin. Theologian Ted Peters , who has written extensively on this subject, has pointed out, however, that the theological argument is not so simple. Looked at from this stand point, even if homosexuality is built-in that does not necessarily serve as a justification.