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O
🩸O negative blood lacks both A and B antigens and the Rh factor, making it safe for donation to all other types.
🧬Without surface antigens, the recipient’s immune system is less likely to mount an immune response.
🧪This makes it ideal for emergency transfusions when the recipient’s blood type is unknown.
🛡️Although individuals with type O can only receive O blood, they can donate to any blood group, hence the term universal donor.
📌Core Message
Type O negative is the universal donor because it contains no A/B/Rh antigens, preventing transfusion reactions in recipients.
This question is from SCIENCE 2024 Exam-1 which contains 50 questions.
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