WAEC BIOLOGY 2002 : A man with heterozygous genotype for blood group B marries a woman with heterozygous A, what percentage (%) of their children would be universal donor?

A man with heterozygous genotype for blood group B marries a woman with heterozygous A, what percentage (%) of their children would be universal donor?

A. 50%

B 25%

C. 15%

D. 10%

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