There are three alleles controlling the blood types ABO. I A and I B are codominant genes, so that ...

There are three alleles controlling the blood types ABO. I A and I B are codominant genes, so that the
  combination I A I B produces the blood type AB. The third allele I O is recessive to the other two
  alleles. Indicate which of these parents could produce the given child:Parents
   Child Yes or No
  (a) A  AB B
  (b) A  O A
  (c) A  B O
  (d) A  AB O
  (e) A  AB B
  (f) B  B O
  (g) AB  AB A What will be an ideal response?
 
 

Question 2

In a certain breed of chicken, an incompletely dominant gene controls color. The homozygous black,
  when crossed with the homozygous splashed-white, produces an intermediate gray color pattern called
  blue. A second gene controls the shape of the comb. The dominant allele (R) produces rose, while the
  recessive allele (r) produces single. Give the F1 and F2 genotypic and phenotypic ratios of a cross
  between a pure-breeding, black single and a pure-breeding, splashed-white rose. What will be an ideal response?