BiologyHeredity and variationJAMB
A father has blood group A (genotype AO) and the mother has blood group B (genotype BO). Their children could have blood group(s)
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Answer: B. A, B, AB or O
The possible genotypes are AB, AO, BO and OO, giving groups AB, A, B and O.
An AdmitMe practice question, written for the JAMB syllabus. Not an official past question.