The sequenced map of the DNA base pairs in the human genome is making it easier to understand the biological pathways involved in mental illnesses and to develop better methods of diagnosis, treatment, and ultimately prevention. This article describes the genetic counseling process for psychiatric disorders, including the use of a family pedigree and predicting genetic inheritance risks based on family history. It also addresses client education issues and the health professionals involved in genetics counseling services. Ethical, legal, and social implications of psychiatric genomics are discussed.
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