白化症是由一對隱性遺傳因子(aa)所引起，甲、乙、丙三人都有白化症。甲說：我的父母都是白子；乙說：我的父母膚色都正常；丙說：我的母親膚色正常，父親是白子。誰說的是正確的？(A)甲、乙、丙的說法皆有

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1.白化症是由一對隱性遺傳因子(aa)所引起，甲、乙、丙三人都有白化症。甲說：我的父母都是白子；乙說：我的父母膚色都正常；丙說：我的母親膚色正常，父親是白子。誰說的是正確的？
(A)甲、乙、丙的說法皆有可能
(B)甲、丙說的正確，乙的說法則不可能
(C)甲說的正確，乙、丙的說法不可能
(D)甲、乙、丙的說法皆不可能

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