Most parents are heterozygotes with one normal allele and one mutated allele.

大多数父母是一个正常等位基因和一个突变等位基因的杂合子。

youdao

Haploinsufficiency --- A cause of genetic disease in which the contribution from a normal allele is insufficient to prevent disease because of a loss-of-function mutation at the other allele.

遗传病的原因之一，单倍的基因剂量不足以维持正常功能。

youdao

The frequency of the latter allele in the group of cirrhosis due to HBV which belonged to the above group had statistic significance comparing to the normal control group.

其乙肝肝硬化组，后者出现的频率与正常对照比较具有统计学上的意义。

youdao