|MadSci Network: Genetics|
Normally, based on the genotypes that you have listed the baby will either be "B+" (genotype BO) or A+ (genotype AO). So usually the answer to your question is no. However, there are anomalies to the ABO blood typing. One example is the Bombay phenotype. I do not know of any that are specific to AB and O blood type matches. However, there might be one. The website listed below gives you a table of parents and offspring blood types http://www.divorcenet.com/paternity/abo-blood.html This website discusses the rare exceptions to the rule http://www.bh.rmit.edu.au/mls/subjects/abo/resources/frequency4.htm Hope this helps Mike
Try the links in the MadSci Library for more information on Genetics.