If both parents have blood type AB (genotype I^A I^B), we can determine the potential blood types of their children using a Punnett square.
The possible alleles contributed by each parent are:
- Parent 1 (AB): can contribute either A (I^A) or B (I^B)
- Parent 2 (AB): can also contribute either A (I^A) or B (I^B)
The combinations from the Punnett square would be:
| | A (I^A) | B (I^B) | |-------|---------|---------| | A (I^A) | AB (I^A I^B) | AB (I^A I^B) | | B (I^B) | AB (I^A I^B) | BB (I^B I^B) |
From this, we can see that the possible blood types of the children are:
- AB (I^A I^B)
- BB (I^B I^B)
Probabilities of blood types:
- Probability of blood type A = 0% (cannot have blood type A)
- Probability of blood type B = 50% (1 out of 2 combinations results in BB)
- Probability of blood type AB = 50% (2 out of 2 combinations result in AB)
- Probability of blood type O = 0% (cannot have blood type O)
In conclusion:
- Probability of blood type A: 0%
- Probability of blood type B: 50%
- Probability of blood type AB: 50%
- Probability of blood type O: 0%