Blood Groups and Significance · NCERT Biology

Which of the following is true regarding a person with blood group O negative?

  1. They have A, B, and Rh antigens
  2. They are the true universal donors
  3. They can receive blood from anyone
  4. They have no antibodies in their plasma
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Correct answer: They are the true universal donors

Blood group O- lacks A, B, and Rh antigens. This makes them the true universal donors because their blood will not trigger an immune response regardless of the recipient's ABO or Rh status.

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