2.下列有关人类的染色体性别决定等方面知识的叙述正确的是 A.性染色体上的基因只与性别决定有关b.性染色体只存在于精子或卵细胞中c.性 Template




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tomski2.下列有关人类的染色体性别决定等方面知识的叙述正确的是 a.性染色体上的基因只与性别决定有关b.性染色体只存在于精子或卵细胞中c.性 coloring