可能還是顯性和隱性基因的組合問題。

來源: 萬楓於 2013-12-10 17:55:17 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

比如黑發和金發，黑發顯性，與來自父母哪一方無關

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