Question

The Rh factor was discovered by

• A. Steine
• B. De Castello
• C. T. H. Morgan
• D. Landsteiner and Weiner

Answer 1

Answer: (D)

The Rh factor is a type of protein on the surface of red blood cells. Most people who have the Rh factor are Rh-positive. Those who do not have the Rh factor are Rh-negative. It was discovered by Karl Landsteiner and Alexander S. Weiner in 1940 in the rhesus monkey.
Therefore, the correct answer is option C.