The vast majority of eukaryotes reproduce sexually; each species generates highly specialized cells with distinct morphological and functional characteristics that differ depending on the individual’s genetic sex. The male spermatozoon (sperm) is generally a motile cell that bears the paternal genome (1, 2), while the female oocyte usually is a large, immotile cell that stores the maternal genome together with all the molecules required to initiate the development of the new organism after fertilization (3).

中文翻译：

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相同基因，异性：脊椎动物受精所需基因的性别特异性差异表达 [遗传学]

绝大多数真核生物进行有性繁殖；每个物种都会产生高度特化的细胞，这些细胞具有不同的形态和功能特征，这些特征因个体的遗传性别而异。雄性精子（精子）通常是带有父本基因组的活动细胞 ( 1 , 2 )，而雌性卵母细胞通常是一个大的不动细胞，它储存母本基因组以及启动发育所需的所有分子受精后的新生物（3）。