Imagine an animal that has a system similar to ABO blood types in humans. The ABO part is the same. In addition, they have a second independent gene that creates a mimic A protein, with alleles M (a dominant allele that makes this A-mimic) and m (a recessive allele that doesn’t make this mimic). When the mimic protein is expressed it adds a cell surface protein that tests as A-type (in addition to whatever is expressed from the ABO locus). Consider the following cross: ABMm X BOMm. Give the expected frequencies for the possible phenotypes among the offspring. I'm not sure where to begin with this--any suggestions would be appreciated!