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?
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.
