Final answer:
The probabilities of blood genotypes and phenotypes for the offspring from a cross between a mother with IAIA blood and a father with IBIB blood are 25% IAIA, 25% IBIB, and 50% IAIB.
Step-by-step explanation:
The probability of blood genotypes and phenotypes for the offspring from a cross between a mother with IAIA blood and a father with IBIB blood can be determined using a Punnett square. In this case, both parents have homozygous blood types, meaning they have two copies of the same allele. The mother has two copies of the IA allele, and the father has two copies of the IB allele. When these two parents are crossed, all of their offspring will inherit one copy of the IA allele from the mother and one copy of the IB allele from the father. Therefore, the probabilities of blood genotypes and phenotypes for the offspring are as follows: A) 25% IAIA, 25% IBIB, 50% IAIB