(genetics) either of a pair (or series) of alternative forms of a gene that can occupy the same locus on a particular chromosome and that control the same character
例句
用作名词 (n.)
There can be more than two alleles for a gene. 一个基因可能有两个以上的等位基因。
Risk from both alleles was confined to estrogen receptor-positie tumors. 两种等位基因引起的乳腺癌仅限于雌激素受体阳性肿瘤。