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Doctors Medicines MCQs Q&A

  1. AB
  2. O
  3. A
  4. B
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1 Answers

Option 2 : O

Concept:-

  • Blood groups: the surface of red blood cells carries a range of different proteins (antigen). These antigens which are inherited determine the blood group.
  • Individuals can make antibodies to these antigens, but not to their own type of antigen since if they did the antigens and antibodies would react

Explanation:-

  • There are many different collections of red cell surface antigens, but the most important are ABO and Rhesus systems.
  • ABO method: the test to determine the blood group.

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Universal donor:  

  • Blood group O is compatible with all groups because O red cells have no antigens, and will therefore not stimulate anti - Or anti - B antibodies.
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