显性基因（Dominant allele）指在一对具有相对性状基因控制的杂合子中，能使其表现出性状的基因或指对该性状有决定性作用的基因。
...： 基因在染色体所处的位置。特定的基因在染色体上都有其特定的座位。每个基因座上，有 两个等位基因。 显性基因(Dominant Gene)： 在杂合状态中，能够表现起表型效应的基因，以大写字母表示。
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结果显示：(1)发型和鼻梁侧面观的显性基因频率均明显低于隐性基因频率，而鼻孔形状则相反。
The results showed that: (1) for Hair forms and Nasal profile, the frequency of the dominant gene was lower than that of theirs recessive gene, but the opposite was true for Nostril forms.
子粒蛋白质含量、容重、湿面筋含量、干面筋含量及沉淀值等性状的高值与显性基因有关，低值与隐性基因有关。
The high value of grain protein content, test weight, wet gluten content, dry gluten content and sedimentation value were related to dominant genes, and the low value was related to recessive genes.
扣手可能是由少数几对基因决定的多基因遗传，存在一个起主要作用的显性基因，其他基因对该显性主基因起修饰作用；
Clasping hand was likely controlled by polygenes with several genes, in which a dominant gene played a major role, and others were modificatory ones.
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