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对黄色(a)为显性,盘状 对球状(b)为显性,两对基因独立遗传。若让基因型为AaBb的白色盘状南瓜与“某南瓜”杂交,子代表现型及其比例如图所示,则“某南瓜”的基因型为( ) A.AaBbB.Aabb aaBb aabb
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