Antherozoid (spermatozoid) The male gamete of algae, some gymnosperms, and the non-seed-bearing plants.
藻类,某些裸植物和没有种形成的植物中的雄性。
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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,配对的XX或XY性染色体对父亲或母亲的第一次减数分裂中没有分离,从而产生两个有两条X染色体的配以及两个没有X染色体的配。
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.
如有丝分裂和减数分裂均发生不分离,那么这类Klinefelter综合征患者的基因型就可能XXXXY,XXXY和XXYY等,包括同时多出一条Y染色体的罕见情况。