Identification of genes responsible for disorders of sexual development using genome-wide copy number analysis

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Congenital conditions in which development of the gonads or anatomical sex is abnormal are surprisingly common. The underlying cause of these problems is most often the failure of genes responsible for the proper development of testes or ovaries. Only a small proportion of patients can be explained by mutations in known gonad determining genes. We will analyse DNA from these patients on very high density microarrays to identify new genes that cause abnormalities in testis or ovary development.