Karl Landsteiner, along with Alexander Wiener, discovered the Rh factor in 1940. This antigen, present on the surface of red blood cells, determines the Rh-positive or Rh-negative status of blood groups, which is critical for blood transfusions and pregnancy.
LIST I (Phenotype) | LIST II (Antibodies) | ||
---|---|---|---|
A | O | I | Anti-A |
B | A | II | None |
C | B | III | Anti-B |
D | AB | IV | Anti-A and Anti-B |
LIST I | LIST II | ||
---|---|---|---|
A | Chop wound | I | Axe |
B | Punctured wound | II | Needle |
C | Bruises | III | Whip |
D | Incised wound | IV | Knife |
Europium (Eu) resembles Calcium (Ca) in the following ways:
(A). Both are diamagnetic
(B). Insolubility of their sulphates and carbonates in water
(C). Solubility of these metals in liquid NH3
(D). Insolubility of their dichlorides in strong HCI
Choose the correct answer from the options given below: