<prompt> Hypergonadotropic hypogonadism is sean in all except?Turner syndromeDown syndromeKlinefelter syndromeSwyers syndrome  <response>: Ans. is b i.e., Down syndrome Hypergonadotropic hypogonadism Also Ka primary or peripheral hypogonadism. Characterised by hypogonadism due to an impaired response of the gonads to the gonadotropin, FSH and LH. In turn a lack of sex steroid production and elevated gonadotropin level. Causes : Chromosomal abnormalitis Turners syndrome Klinefelter syndrome Swyers syndrome Enzyme defect 17 , hydroxylase 17, 20 lyase deficiency 