What blood types (phenotypes) could not occur in the children based on the parents’ genotypes?

What blood types (phenotypes) could not occur in the children based on the parents’ genotypes?

A person’s ABO blood type is determined by three alleles of gene I. If IA is present, then the person will have the A antigen present on their red blood cells (RBCs). If IB is present, then the person will have the B antigen on their RBCs. The recessive allele (i) does not add an antigen to the RBCs. People who are homozygous recessive (ii) will have Type O blood. People who are homozygous for IA (IA IA) or heterozygous (IAi) will have type A blood. People who are homozygous for IB (IB IB) or heterozygous (IBi) will have type B blood. People who have one IA allele and one IB allele will have type AB blood.
The alleles of a second gene, gene H, also affect a person’s ABO blood type. People who are homozygous or heterozygous for the dominant allele of gene H (HH or Hh) will have the blood type that is determined by gene I. People who are homozygous recessive for gene h (hh), which is known as the Bombay Phenotype, will always have type O blood, regardless of which alleles they have for gene I because the h allele prevents the A or B antigens from being attached to RBCs.
1) The interaction between the alleles for gene I is an example of:
Codominance Epistasis Expressivity Penetrance Phenocopy2) The interaction between gene H and gene I is an example of:
Codominance Epistasis Expressivity Penetrance Phenocopy3) A father with the genotype Hh/ IA IB and a mother with the genotype Hh/ IBi have 3 children. What blood types (phenotypes) could not occur in the children based on the parents’ genotypes?
Type A Type B Type AB Type O All 4 blood types could be present4) A father with the genotype hh/ IAIA and a mother with the genotype Hh/ IAIB have 3 children. What blood types (phenotypes) could not occur in the children based on the parents’ genotypes?
Type A Type B Type AB Type O All 4 blood types could be present

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