There are different blood types: A, B, AB, and O, with each also being Rh-positive or Rh-negative. Knowing your blood type is important for safe blood transfusions and organ transplants. Type ...

Several genes with varying inheritance patterns are involved in determining your blood type. The most significant gene is the ABO gene which determines your ABO blood type. Like many of your physical ...

Every year, some 10,000 ailing babies are born in the U.S. to parents with hostile blood types caused by the mysterious Rh factor.† Even with the most modern treatment, the best that doctors could ...