U fiirso qoraalka hoose ka dibna ka jawaab su'aasha kadib isla luqadda qoraalka:  Xigmad: Cudurka waxaa loo magacaabay Harry Klinefelter, kaasoo sanadkii 1942 la shaqeeyay Fuller Albright iyo E. C. Reifenstein oo ka shaqeynayay Isbitaalka Massachusetts General Hospital ee magaalada Boston, Massachusetts, wuxuuna markii ugu horaysay ku tilmaamay isla sanadkaas. Warbixinta uu bixiyay Klinefelter waxaa loo yaqaanay Klinefelter syndrome maadaama magaciisa uu markii ugu horreysay ka soo muuqday warqadda la daabacay, waxaana la joojiyay isticmaalka cudurka'seminiferous tubule dysgenesis'. Marka la tixgeliyo magacyada saddexda cilmi baare, waxaa mararka qaarkood sidoo kale loo yaqaannaa Klinefelter-Reifenstein-Albright syndrome. Sanadkii 1956 waxaa la ogaaday in cudurka Klinefelter uu ka dhashay kromosom dheeraad ah. Plunkett iyo Barr waxay heleen jidhka chromatin jinsiga ee unugyada jirka. Tan waxaa sii caddeeyay sida XXY sanadkii 1959 Patricia Jacobs iyo John Anderson Strong. Warbixintii ugu horreysay ee la daabacay ee nin leh karyotype 47,XXY waxaa qoray Patricia Jacobs iyo John Strong oo ka tirsan Isbitaalka Guud ee Galbeedka ee Edinburgh, Scotland, sanadkii 1959. Qaabkan waxaa laga helay nin 24 jir ah oo calaamado u muuqda cudurka KS. Jacobs waxay ku sharraxday ogaalkeedii ugu horreeyay ee la soo sheegay ee loo yaqaan 'chromosome aneuploidy' ee bini'aadamka ama naasleyda ee 1981kii William Allan Memorial Award.  Su'aal: Sanadkee ayay Patricia Jacobs iyo John Anderson Strong cadeeyeen chromosome-ka in loo yeero XXY?
Sanadkii 1959