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WAEC Biology 1994 Question 16

Question 16

Transport in Animals

Which of the following blood group(s) is/are the universal donor(s)?

  1. A.O
  2. B.A
  3. C.B
  4. D.AB
  5. E.AB and O
Show the answer and explanation

Answer: A (O)

Explanation

Group O red cells have no A or B antigens, so they can be given to people of any group.