Question
One parent has type B blood, and the other has type O blood. Why is a six-month-old daughter A type?
Answer
Blood type is controlled by genes, and a child’s blood type may not necessarily be the same as their parents’. Although parents with type B and type O blood can have a child with type A blood, this situation is relatively rare. If such a situation arises, it is recommended to undergo multiple checks to confirm the possibility of a testing error. Additionally, choose a reputable medical institution to ensure the accuracy of the results. Avoid unnecessary family conflicts until a definitive answer is obtained.