果蝇的红眼为显性长翅为显性这两对基因是自由组合的a A在x染色体上b B在常染色体上 1红眼雌果蝇与白眼雄果蝇交配f1代全是 Template




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tomski果蝇的红眼为显性长翅为显性这两对基因是自由组合的a a在x染色体上b b在常染色体上 coloring