Multiple choice general knowledge science & technology

Who discovered Rh-factor ?

  1. Louis Pasteur(France)

  2. Karl Landsteiner(USA)

  3. Jenner(USA)

  4. Froelich Holst(Norway)
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Karl Landsteiner, working in the United States, discovered the Rh blood factor in 1937 along with Alexander Wiener. Landsteiner had previously discovered the ABO blood group system (1901), making him a giant in transfusion medicine.

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