Human blood types are genetically determined. The table below shows the symbols used to represent two of the alleles for blood types and gives a description of each allele. 
In homozygous individuals, two IA alleles result in blood type A and two IB alleles result in blood type B. The IA and IB alleles are codominant, resulting in blood type AB in individuals heterozygous for the two alleles. A male and a female both have blood type AB. If they have a child, what is the probability that the child will also have blood type AB? |