Q 1. Who discovered human blood groups?
2. What happens if two blood types that are not compatible are mixed?
3. The differences in human blood are due to
1. Karl Landsteiner 2. If two blood groups which are not compatible and are then mixed It leads to blood clotting and thus cuts the blood supply to the vital organs or causes stroke. So it is very important that blood should be transfused after checking the type of blood groups. 3. Proteins
