Question

why is a person with blood group O called Universal Donor and a person with blood group ab called Universal recipient​

Answer 1

People with type O- blood are called universal donors because their donated red blood cells have no A, B or Rh antigens and can therefore be safely given to people of any blood group.

Answer 2

Answer:

because the person like me(O group) don't have resseus substance present in bloods of A and B so it don't differentiates others...

and AB have both types of resseus so can't donate only takes takes

Explanation:

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