LaToya has type A blood, and Gerald has type B blood. Their daughter has type O blood. Can Gerald be the baby daddy? He is a bit worried.
Please complete the Punnett square(s) to determine the possibilities.
a
No, type B blood must be homozygous
b
Yes, if one parent is heterozygous
c
No, this is impossible
d
Yes, if both parents are heterozygous
d. Yes, if both parents are heterozygous
Punnett square:
| A | O |
----------------------------------------------------------------
Gerald | AA (type A) | AO (type A) |
LaToya | BO (type B) | BO (type B) |