Multiple Allele Questions 1 Punnett Square of AB blood person and O blood person IA IB IO IA IO IO IB IO IA IO IB IO 2 The possible phenotypes are Type A and Type B blood 3 The phenotypic ratio is 1 1 4 The possible genotypes are IA IO and IB IO 5 Genotype Phenotype IA IA A A O I I A IB IB B B O I I B IA IB AB O O I I O AB blood is considered a universal recipient Compatible as a Donor A AB A AB B AB B AB AB A AB B Compatible as a Recipient A O A O B O B O AB A B O O AB blood is considered a universal recipient because it contains both antigen A and B and doesn t have reactive antibodies and has all the tags so a person with AB blood doesn t develop antibody against other blood types 6 O blood is sometimes called a universal donor 7 O blood is sometimes called a universal donor because it doesn t cause individuals to produce antibodies during blood transfusions due to there being no antigens in O blood
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