Then there is Meiosis for our gametes, because they (gametes) are different.
然后是配子减数分裂,因为它们(配子)是不同。
In Klinefelter syndrome, the sex chromosome pairs which is either XX or XY don't separate in meiosis I in the male or female germ cell and this resulted in two gametes with a pair of X chromosomes and two gametes without X chromosomes.
Klinefelter综合征中,配对XX或XY性对在父亲或母亲第一次减数分裂中没有分离,从而产生了两个有两条X配子以及两个没有X配子。
If failure also happens during meiosis in these germ cells as they give rise to gametes, other XXXXY, XXXY and XXYY genotypes that also lead to Klinefelter syndrome can result including the rare situation where there's an additional Y chromosome.
如果有丝分裂和减数分裂均发生了不分离,那么类Klinefelter综合征患者基因型就可能是XXXXY,XXXY和XXYY等,包括了同时多出一条Y罕见情况。