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UP POLICE ASI CLERKUP POLICE ASI CLERK Hard Mock Set 3Hard GK

UP POLICE ASI CLERK Mock Test Set 3, Q39: Identify the correct answer for universal donor blood group in basic ABO-Rh system.

A. B negative
B. O negative
C. AB positive
D. A positive
Correct Answer: B. O negative
Explanation: O negative is commonly called universal donor. Category: UP POLICE ASI CLERK. Set: 3.
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