When a person gets an organ transplant the body’s immune system will reject and attack the organ because of foreign DNA. Why does this not apply to blood transfusions?
In: Biology
All human cells have little markers on their surface made out of protein. Our white blood cells eat any cells that don’t have the correct markers. It applies to both blood transfusion and organs. Little antibodies attach to the markers that aren’t ours and cause the blood to coagulate by sticking to one another (the antibodies).
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