Practice problem

Multiple Alleles — Definition & Examples

The table below shows the different genotypes for blood type, and which blood type is the resulting phenotype.

Genotype AA results in blood type A. AO results in blood type A. BB results in type B. BO results in type B. AB results in type AB. OO results in type O. — Image by: Gabi Slizewska

Imagine this situation: Two guys are fighting over which one of them is the father of a new born baby. For some reason, the only evidence they have is blood type. The baby has type O blood, and the mom has type A. Guy #1 has type AB blood, and guy #2 has type B blood. Based on this information, who is most likely the father?

Hint: Remember that O is a recessive allele.