Question

A man with blood type AB(AB) Married and has children with a woman. Who has blood type O(OO) what percentage of phenotype can we expect in their offering

Answer 1

To determine the possible blood types of the children from a man with blood type AB and a woman with blood type O, we can start by looking at the possible alleles each parent can pass on.

- The father with blood type AB has the genotype **IAIB** (where IA represents the A allele and IB represents the B allele).
- The mother with blood type O has the genotype **ii** (where the lowercase i represents the O allele).

When these two parents have children, the possible combinations of alleles can be determined by creating a Punnett square:

| | IA | IB |
|-------|-------|-------|
| i | IAi | IBi |
| i | IAi | IBi |

The offspring can inherit the following genotypes:
- **IAi** (Blood type A)
- **IBi** (Blood type B)

Now, since both **IAi** and **IBi** result in distinct phenotypes, we can summarize the expected phenotypes of their children:

- 50% will have blood type A (genotype IAi).
- 50% will have blood type B (genotype IBi).
- There will be no children with blood type O or AB.

**In summary:**
- 50% of the children can be expected to have blood type A.
- 50% of the children can be expected to have blood type B.

Therefore, the expected phenotype percentages are:
- 50% Blood Type A
- 50% Blood Type B