A) Landsteiner and Wiener
B) Landsteiner and Bernstein
C) Struli
D) Von Decastello
Correct Answer: A
Solution :
Rh factor : ?Rh? factor is a antigen present on cell membrane of RBC and there is no anti-Rh antibodies (are present) in humans. ?Rh? factor was first discovered by Landsteiner and Weiner in the plasma membrane of RBCs of rhesus monkeys. In India 97% individuals possess Rh antigen, so called as Rh-positive. AB and O blood groups was discovered by Landsteiner and AB by Decastello and Sturle.
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