<prompt> Male pseudohermaphroditism is seen in5- a redutase deficiency21 hydroxylase deficiency17 hydroxylase deficiencyGonadal dysgenesis  <response>: 5 alpha reductase conve testosterone to dihydrotestosterone,which is required for external genital devolopment in male.deficiency of it leads to development of mullerian duct into fallopian tube,Uterus and upper third of vagina. Reference : Ghai essential of pediatrics, eighth edition, p.no:538 