A case of trisomy 22 liveborn female baby with multiple congenital anomalies is described.
摘要作者报告一例具有种先天性异常的染色体22症的活。
Polysomy, which includes trisomy, is the condition in which one or more chromosomes are represented more than twice in the cell.
染色体包括染色体都是一染色体代替了正常细胞中的两染色体形成的。
So this fetus presented seeral signs of trisomy 21, including the hypoplasia of the nasal bone, hypodontia, micrognathia, and hypospadias.
这样，本例胎儿显示21体的若干征象：包括鼻骨发育不全、牙发育不全、小颌和尿道下裂。
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Sometimes though, one parent might contribute one chromosome too many, which is called trisomy, or one chromosome less, which is called monosomy.
但是有时候，双亲中的一方可能会贡献多于一条，这被称为三；或者少一条，称为单。
Since trisomy 15 isn't compatible with life, the fetus only survives only if they lose one copy of the chromosome in the early embryo, called trisomy rescue.
15号三胎儿不能存，要想存须在胚胎早期丢失一条，这一过程称为三自救。
So we know that people with Down syndrome have an extra copy of the 21st chromosome, which is why it's sometimes called trisomy 21.
因此，我们知道唐氏综合症患者拥有额外的第21号拷贝，这是为什么它有时被称为21三症。 “三” 意指三个，像三轮车有三个轮子一样。
And there's trisomy 13, 16, 18.
还有13号三、16号三、18号三。
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划词翻译
详细解释
种先天性异常的
染色体22症的活
。
，这被称为
，要想存
须在胚胎早期丢失一条
拷贝，这
是为什么它有时被称为21
