下图表示人的生殖�育过程及染色体数目的变化请据图回答1ab分别表示父母的体细胞他们的染色体数均为 条2a表示产生生殖细胞的 Template




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tomski下图表示人的生殖�育过程及染色体数目的变化请据图回答1ab分别表示父母的体细胞他们的染色体数均为 条2a表示产生生殖细胞的 coloring