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Blood group polymorphisms

Forexampleatypebloodhas aantigens

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Unformatted text preview: ) white blood cells fibrinogen plasma globulin fractions platelets Blood types Blood types http://www.youtube.com/watch?NR=1&v=oz4Ctau8mC8 http://www.youtube.com/watch?v=UvZJvvyYbW8 On the surface of red blood cells are antigens for their own type of blood. For example, “A” type blood has “A” antigens, “O” type blood has no antigens at all and so won’t be recognized as foreign. “OO” is the universal donor. You have antibodies on your RBCs to “non­you” antigens, even if you’ve never been exposed to them before. An exception is the “Rh” (+ or ­) factor, where prior exposure is necessary to develop antibodies. Also, your blood plasma has antibodies to any blood not of your own type (A or B). If you are given a transfusion of a different type of blood (unless it’s OO), the antibodies in your plasma bind to the antigens on the transfused red blood cells. Clotting occurs – often massively. “AB” blood has antigens for A and B but no antibodies for either, so can receive any type of blood (universal recipient). Another type of antigen is soluble in Another type of antigen is soluble in certain bodily fluids This is k...
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