显性等位基因；英文名Dominant allele，是指决定杂合中表型的等位基因。
所检测到的耐冷性QTL的增效等位基因多数来自吉冷1号，基因作用的方式主要为部分显性、显性和超显性。
Most of dete cted QTLs allele were come from cold-tolerant parent Jileng 1. The gene action was partial dominance, dominance and over dominance primarily.
太湖猪产仔数性状基因加性值比长白猪高1．39头，太湖猪高产仔数基因对长白猪等位基因呈显性，显性度为0．81。
The additive effect of the gene on litter size in Tailiu Pig is 1.39 higher than the allele in Landrace. The gene in Taihu Pig is dominant to the allele in Landrace with dominant ratio of 0.81.
按照吸烟特点进行亚组分析：在等位基因比较、纯合子比较、隐性遗传模型和显性遗传模型下，都没有发现吸烟与肺癌有显著关联。
In the subgroup analysis stratified by smoking status, no association of smoking was found between 12139c allele and lung cancer under different genetic models.
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