Description : Blood groups were discovered by - (1) Altmann (2) Landsteiner (3) Losch (4) Ronald Ross
Last Answer : (2) Landsteiner Explanation: Karl Landsteiner was an Austrian biologist and physician. He is noted for having first distinguished the main blood groups in 1900, having developed the modern system of ... s life. With Constantin Levaditi and Erwin Popper, he discovered the polio virus, in 1909.