trisomy

1.A case of trisomy 22 liveborn female baby with multiple congenital anomalies is described.

摘要作者报告一例具有多种先天性异的三色体22症的活女婴。

2.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21三体的若干征象：包括鼻骨发育不全、牙发育不全、小颌和尿道下裂。

3.Polysomy, which includes trisomy, is the condition in which one or more chromosomes are represented more than twice in the cell.

多色体包括三色体都是一条或多条色体代替了正细胞中的两条色体形成的。