Genetics of intersex: Antagonism between male and female pathways during gonadal development

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Disorders of sex Development (DSD) are congenital conditions in which development of chromosomal, gonadal or anatomical sex is atypical. Estimates suggest that between 1-100 and 1-300 live birth have DSD; however, the underlying genetic defect is unknown in 80% of cases. Generally, the fate of the gonad, testis or ovary, is determined by the balanced action of male (SRY) and female (Wnt- b-catenin) genes. How do these genes oppose each other? Is this antagonism deregulated in DSD patients?