Schizophrenia, like other common diseases poses challenges to the geneticist because it results from the action of both genetic and environmental factors. Moreover, the genetic component probably consists of the combined action of several, and possibly many, genes, each of which results in only a modest increase or decrease in liability. However, in psychiatry genetic complexity is compounded by phenotypic complexity and this is specially true for schizophrenia. Despite these methodological difficulties, genetic research of schizophrenia has been gathering speed with improvements in molecular genetic techniques. This seminar aims to give an overview on the current status of genetics of schizophrenia
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