<prompt> Kleinfilter syndrome is dignosed by -Karvo typingUSG abdomenTriple testEchocadiography  <response>: Ans. is a i.e., Karyo typing Klinefelter syndromeo Extra x chromosome 47 XXY karyotypeo Small testes with hyalinised seminiferous tubuleso Delayed puberty Delayed secondory sexual charactero Small peniso Tall under weighto Mental retardationo Gynaecomastia 