![Blood grouping is discovered by scientist in 1990 name was?](https://www.gkseries.com/blog/wp-content/uploads/2022/01/Blood-grouping-is-discovered-by-scientist-in-1990-name-was.png)
Q. Blood grouping is discovered by scientist in 1990 name was ?
A. Charles Richard Drew
B. Alexander S, Weiner
C. Karl Landsteiner
D. None of the above
Answer: Karl Landsteiner
A. Charles Richard Drew
B. Alexander S, Weiner
C. Karl Landsteiner
D. None of the above
Answer: Karl Landsteiner
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