A trait or disease is called heritable if monozygotic twins are more similar to each other than dizygotic twins.
如果一种性状或疾病在同卵双胞胎中的同时发生的概率高于异卵双胞胎，那么这种性状或疾病是“可遗传的”。
The morbidity of the living fetus was markedly increased in single fetal in 12~34weeks or those in monozygotic twins.
一胎于妊娠12～34周死亡者或单卵双胎者，其存活胎婴儿病率增加。
Objectives: Genotype phenotype correlation in 2 pairs of monozygotic twins with ARVC and the role of environmental factors are analyzed.
目的：在两对ARVC单卵双生子中分析基因型与表型的相关性以及环境因素的作用。
In addition, more information about the cause of monozygotic twins could be collected in the future by a straightforward check of the Numbers of placentas and sacs when the babies are born.
另外，将来有关单卵双胞胎原因更多的信息可以直接通过出生后核对胎盘和羊膜囊的数目来获得。
While the effect of IGF on the ovaries likely involves fraternal, or dizygotic, twins, they were not distinguished from identical, or monozygotic, pregnancies in this study.
在本研究中，虽然IGF作用于卵巢可以引起异卵或双合子双胞胎妊娠，但是这种妊娠不能和同卵或单合子双胞胎妊娠相区别。
While the effect of IGF on the ovaries likely involves fraternal, or dizygotic, twins, they were not distinguished from identical, or monozygotic, pregnancies in this study.
在本研究中，虽然IGF作用于卵巢可以引起异卵或双合子双胞胎妊娠，但是这种妊娠不能和同卵或单合子双胞胎妊娠相区别。
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