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.
尽管DNA序列相同，单合子的双胞胎或者克隆的动物如何有不同的表现型和对同一疾病不同的易感性，经典的遗传学也不能解释。
Nor does classic genetics explain how, despite their identical DNA sequences, monozygotic twins1 or cloned animals2 can have different phenotypes and different susceptibilities to a disease.
这两种选择可用于治疗儿童该病非常严重纯合子形式。方式之一是进行LDL单采。
The two options available to us for treating children with very severe homozygous form of the disease are to one either perform LDL apheresis.
这两种选择可用于治疗儿童该病非常严重纯合子形式。方式之一是进行LDL单采。
The two options available to us for treating children with very severe homozygous form of the disease are to one either perform LDL apheresis.
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