<prompt> Young male presents with delayed pubey with decreased FSH, LH and testosterone. Which of the following is not the possible diagnosis :Kallmann syndromeKlinefelter syndromeConsitiutional delayDax-1 gene mutation  <response>: Klinefelters syndrome Eunochoid in built Infeile with small penis,testis,varying degree of gynaecomastia Sex chromatin is positive Karyotype is XXYXXXY Genitalia are small and infantile, genital ducts are wolfian Serum gonadotropins are elevated D.C.DUTTAS TEXTBOOK OF GYNAECOLOGY,Pg no:444,6th edition 