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However, as our knowledge of genetics has become more sophisticated, we now know that some genes only provide a tendency or increased chance of developing some diseases (Collins et. al., 1998). In both the cases of clear-cut genetic causation, such as with Huntington's Chorea, and in cases where genetics may play a role, such as in some types of breast cancer, medical professionals as well as patients have to make some difficult decisions (Collins et. al., 1998). Would most people want to know if they were destined to develop Huntington's Chorea, or would they rather not know? Does an individual want to know that he or she carries a gene that can lead to breast cancer even though this knowledge, by itself, cannot predict whether the person will get the disease or not? (Collins et. al., 1998)

Other questions involve the right of individuals to privacy. Once we have human DNA completely mapped, will we then begin to generate detailed genetic profiles of all medical patients? If we do, is this information that can be shared with other organizations, by, for instance, hospitals? If it can be shared, insurance companies might then drop people with genes that make them prone to certain kinds of cancer, or destined to develop some genetically-driven disease such as Huntington's. In those cases, the individuals would get glimpses into their medical future whether they wanted to know what their genes reveal or not.

Advances in genomic science raise innumerable psychosocial questions. The issues underlying the story of the Genetic Revolution are fundamental, even philosophical What is the essence of being human? How much will we try to control the gender, the temperament, and the genetic heritage of our children? How much can we improve on the human condition? Are disabilities to be avoided or embraced? Who has