Determining a child’s potential blood type based on the blood types of the biological mother and father can be achieved through established genetic principles. This prediction is performed using tools that analyze possible allele combinations inherited from each parent. For example, if one parent has type A blood and the other has type B blood, the offspring could potentially have type A, type B, type AB, or type O blood.
Understanding potential blood type inheritance is valuable for several reasons. Historically, it has been used to verify parentage, though DNA testing is now the primary method. In modern contexts, it aids in assessing the risk of hemolytic disease of the fetus and newborn (HDFN), particularly when the mother is Rh-negative. Moreover, it satisfies curiosity and provides general information about a child’s genetic makeup before birth or at an early age.
