A woman with blood type AB has two children. One has the genotype I Ai and the other has the genotype I Bi. What is the genotype of the mother? What are the genotype and phenotype of the father? What...

A woman with blood type AB has two children. One has the genotype I Ai and the other has the genotype I Bi. What is the genotype of the mother? What are the genotype and phenotype of the father? What is the chance that one of their future children will have type O blood?

A color-blind man marries a woman with normal vision. The woman’s father was also color-blind. (a) What is the chance that their first child will be a color-blind son? A color-blind daughter? (b) If they have four children, what is the chance that two will be color-blind sons? (Be careful on this one.)

The Browns are both carriers of the recessive allele that causes the metabolic disorder called phenylketonuria. What is the probability of each of the following occurring? (a) All three children will have the disorder. (b) None of their three children will have the disorder. (c) One or more of their children will have the disorder. (d) At least one of their children will be phenotypically normal.