null allele meaning in English

无效等位基因：一个等位基因不能合成产物或产物无功能。

Among all the microsatellite loci , 46 . 7 % of the loci and 11 . 7 % of the alleles were null alleles . separate genetic linkage maps were constructed for the female and male parents
微卫星位点中有大量的无效等位基因（ nullallele ），占所有位点的46 . 7 % ，是所有等位基因的11 . 7 % 。
In this article , we review isolation methods , developmental status and genetic characteristics of microsatellites , and their applications in studies on population study , pedigree analysis , assessment of genetic diversity , and construction of genetic maps in the marine mollusks , and analyzed the causes resulting to null allele , stutter bands , short allele dominance and allelic dropout , and their effects on genotyping of microsatellite
本文对海洋贝类微卫星分离方法、开发现状、遗传学特性以及在种群遗传、家系分析、遗传多样性评价等方面的最新研究进展进行了综述，并分析了微卫星分析中无效等位基因、 “结巴”带、短等位基因显性和等位基因“扩增丢失”现象的产生原因以及对微卫星基因型判读带来的影响。