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A wealthy elderly couple dies together in an accident. A man comes forward, claiming that he is their long lost son and is entitled to their fortune. The couple were of blood types AB and O. The man has
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A wealthy elderly couple dies together in an accident. A man comes forward, claiming that he is their long lost son and is entitled to their fortune. The couple were of blood types AB and O. The man has type O blood. Could he be the heir to the fortune?

User Zin
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This man is not able to be the heir to their fortune. One of them was blood type AB meaning their genotype is I^AI^B which is the only possible composition of their phenotype. Their offspring will only be heterozygous I^Ai and or I^Bi.
User Malkam
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