Homonym: A형 (Type)
A형, or Type A blood, is one of the four main blood types in the ABO blood group system. It is characterized by the presence of A antigens on the surface of red blood cells. People with A형 blood can receive blood from A형 and O형 donors, making it important for blood transfusions.
In terms of genetics, A형 blood is determined by the presence of the A allele. This means that individuals can inherit A형 blood from one or both parents. Understanding blood types, including A형, is crucial for medical procedures, organ transplants, and blood donation programs.