4.果蝇的眼色由x染色体上的一对等位基因决定基因b为显性.在一个封闭饲养的实验果蝇种群中查得f1代白眼雄果蝇占雄果蝇群体的18�代 Template




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tomski4.果蝇的眼色由x染色体上的一对等位基因决定基因b为显性.在一个封闭饲养的实验果蝇种群中查得f1代白眼雄果蝇占雄果蝇群体的18�代 coloring