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Biology, 23.07.2021 21:40 Lexysmith4900

Sự di truyền nhóm máu được quy định bởi 3 gen: IA quy định nhóm máu A, IB quy định nhóm máu B, IO quy định nhóm máu O. Gen IA và IB tương đương nhau và trội hoàn toàn so với IO. Ở nhà hộ sinh người ta nhầm lẫn giữa 2 đứa bé , biết rằng ba, mẹ của 1 đứa bé này có nhóm máu O và A, cha mẹ của đứa bé kia có nhóm máu A và nhóm máu AB. Hai đứa bé có nhóm máu O và A. Hãy xác định đứa bé nào là con của cặp vợ chồng nào

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