下列关于受精作用的叙述中正确的是 A.受精时精子和卵细胞的染色体合在一起b.受精卵中的染色体一半来自父方一半来自母方c.受精卵中的 Template




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tomski下列关于受精作用的叙述中正确的是 a.受精时精子和卵细胞的染色体合在一起b.受精卵中的染色体一半来自父方一半来自母方c.受精卵中的 coloring