The first gene is responsible for determining blood group (A,B or O). For this gene both A and B are dominant (codominance) and O is recessive. These alleles are referred to using the following:

IA - A Allele

IB - B Allele

I0 - O Allele

The second gene determine the Rh type (+ or -). In this gene Rh + is dominant over Rh -. These alleles are referred to using the following:

R - Rh+

r - Rh-

1) A woman has the blood type 0-. What are the possible combinations of these 2 genes in her egg cells?

2) This woman's husband has the Following Genotype - IBI0Rr. What is the likelihood that their children will be O+ blood type?

3) Is it possible for these parents to have a child with AB+ blood type? Explain your answer

4) Mother-fetus incompatibility occurs when the immune system of the mother crosses the placenta and attacks the red blood cells of the fetus. This only occurs when the mother is Rh- and her fetus is Rh+. What is the likelihood that this woman will experience complications associated with Mother-Fetus incompatibility during her pregnancy?