摘要：基因型AABB的桃树做母本.基因型aabb的桃树做父本.授粉后.结出的果实中胚细胞.胚乳细胞.果皮细胞的基因型依次是 A.AaBb.AaBb.AaBb B.AaBb.AAaBBb.AABB C.AaBb.AAaBBb.AaBb D.AaBb.AaaBbb.AABB

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