如图表示人的生殖�育过程中染色体数目的变化请据图回答问题.1ab分别表示父母的体细胞它们的染色体数目均为 .2a表示父母分别产生 Template




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tomski如图表示人的生殖�育过程中染色体数目的变化请据图回答问题.1ab分别表示父母的体细胞它们的染色体数目均为 .2a表示父母分别产生 coloring