Which of these statements is correct in the human ABO blood grouping system?

Which of these statements is correct in the human ABO blood grouping system?
  • A.
    B is recessive
  • B.
    A is dominant over B
  • C.
    O is recessive
  • D.
    O has antigene A and B
  • E.
    A and B are both recessive
Correct Answer: Option D
Explanation
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