Tirohia te whiti i raro nei, ka whakautu i te pātai i muri mai i roto i te reo ano i te whiti: Passage: Triple X syndrome is not inherited, but usually occurs as an event during the formation of reproductive cells (ovum and sperm). Ka taea e te hapa i roto i te wehenga pūtau i huaina nondisjunction hua i roto i ngā pūtau whakatipuranga ki chromosomes anō. Hei tauira, he oocyte sperm cell ranei kia whiwhi i te tārua atu o te X chromosome rite ki te hua o te non-disjunction. Ki te whai wāhi tetahi o enei pūtau ki te hanga iranga o te tamaiti, ka whai te tamaiti i te X chromosome atu i roto i ia o ona pūtau. I roto i etahi take, trisomy X puta i roto i te wehenga pūtau i roto i te whanaketanga embryonic wawe. Pātai: He aha te mea he hapa i roto i te wehenga pūtau i huaina?
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