4) If a person with blood type AB marries someone with type O, what would be the possible genotypes and phenotypes of their children? (show work if you can please)

http://anthro.palomar.edu/mendel/mendel_2.htm

To determine the possible genotypes and phenotypes of the children of a person with blood type AB (genotype AB) and someone with blood type O (genotype OO), we need to understand the inheritance patterns of blood types.

The ABO blood type system is controlled by multiple alleles, which are versions of a gene. The gene responsible for ABO blood types has three possible alleles: A, B, and O.

The A allele codes for the A antigen on red blood cells, the B allele codes for the B antigen, and the O allele codes for no antigen (referred to as the absence of A or B antigens). The A and B alleles are dominant over the O allele, but do not interact with each other; therefore, they exhibit codominance when both are present in an individual.

With this information, we can determine the possible genotypes and phenotypes of the children by considering the possible allele combinations.

Possible genotypes of the children:
1. AO – The child would inherit an A allele from the parent with blood type AB (AO) and an O allele from the parent with blood type O (OO).
2. BO – The child would inherit a B allele from the parent with blood type AB (AB) and an O allele from the parent with blood type O (OO).

Possible phenotypes of the children:
1. Blood type A – If the child has genotype AO, they would have blood type A since the A allele is dominant.
2. Blood type B – If the child has genotype BO, they would have blood type B since the B allele is dominant.

Therefore, the possible genotypes and phenotypes of their children would be AO with blood type A and BO with blood type B.