为什么雄蝗虫只有一条性染色体,却还是二倍体生物�?那21三体综合征算几倍体? 知乎 Template




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tomski为什么雄蝗虫只有一条性染色体,却还是二倍体生物�?那21三体综合征算几倍体? 知乎 coloring