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The ABO blood group system was discovered in 1900 by Karl Landsteiner. The AB blood group was discovered by Von Decastellor and Sturli in 1902.

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Which scientist discovered human blood groups?

In the year 1900, an Austrian Scientist, Karl Landsteiner, discovered iso-agglutination, the phenomenon wherein red corpuscles and serum of the animal species are clumped together. On carrying out further experiments on blood, Landsteiner discovered that agglutinogens when mixed with agglutinins of another blood types produced fatal agglutination. These agglutinogens were named as A and B, and their respective agglutinins were named alpha and beta respectively. With this discovery, the question of blood group incompatibility was explained. Later, he discovered another blood type and named it O. In 1907, another scientist Jansky discovered a fourth type of blood, it was named AB. This discovery was corroborated by Moss in 1910. These agglutinogens and agglutins were renamed as antigens and antibodies respectively, specific to the blood.


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Which scientist discovered human blood groups?

In the year 1900, an Austrian Scientist, Karl Landsteiner, discovered iso-agglutination, the phenomenon wherein red corpuscles and serum of the animal species are clumped together. On carrying out further experiments on blood, Landsteiner discovered that agglutinogens when mixed with agglutinins of another blood types produced fatal agglutination. These agglutinogens were named as A and B, and their respective agglutinins were named alpha and beta respectively. With this discovery, the question of blood group incompatibility was explained. Later, he discovered another blood type and named it O. In 1907, another scientist Jansky discovered a fourth type of blood, it was named AB. This discovery was corroborated by Moss in 1910. These agglutinogens and agglutins were renamed as antigens and antibodies respectively, specific to the blood.


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