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SSC GD CONSTABLESSC GD CONSTABLE Hard Mock Set 1Hard GK

SSC GD CONSTABLE Mock Test Set 1, Q39: Identify the correct answer for universal donor blood group in basic ABO-Rh system.

A. O negative
B. AB positive
C. A positive
D. B negative
Correct Answer: A. O negative
Explanation: O negative is commonly called universal donor. Category: SSC GD CONSTABLE. Set: 1.
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