单词trisomy
n.: 〔遗〕三体性；三体型
网络: 三染色体；三性体；染色体增加
三体型
〔遗〕三体性
An aneuploid state in which a third homologous chromosome is present in addition to the normal autosomal pair is called trisomy.
除了正常染色体对以外，还存在有第二种同源染色体的非整倍体状态，被称为三体性。
This is the heart of a premature stillborn with Trisomy 13 in which a ventricular septal defect is visible in the membranous septum.
这是一例因13三体综合征而流产的早产儿心脏。可见室间隔缺损。
Relative to fetuses with a nasal bone, those without a nasal bone were estimated to have about 150-times the risk of having trisomy 21.
与同有鼻骨的胎儿相比，那些没有鼻骨的胎儿估计有高于前者约150倍发生第21对染色体三体的机率。
Trisomy has been the focus of extensive medical research but the exact mechanism is still not understood.
三体综合症在医学研究上备受关注，但其确切机制仍未明确。
So this fetus presented several 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。
Derivation of a formula for determination of proportion of paternal trisomy 21 is presented.
推导公式确定比例的父亲是21三体。
Autosomal trisomy is a common cause of human miscarriage, malformations and learning disability.
常染色体是人类的共同事业流产，畸形和学习障碍。
A case of partial trisomy 13 is found on a male baby aged 3 months with multiple congenital abnormalities.
本篇报告一例第13对部分三染色体之3个月大男婴，病人自出生卽被发现有多方面的先天性异常；
Symmetrical clavicular widening was observed in a boy with mosaic trisomy for chromosome 8.
对称锁骨扩大观察一个男孩花叶为8号染色体三体。
A case of trisomy 22 liveborn female baby with multiple congenital anomalies is described.
作者报告一例具有多种先天性异常的三染色体22症的活产女婴。