Tag: Physiology or Medicine
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The first description of DNA: A six million dollar letter from Francis to Michael Crick
Marshall A. Lichtman Rochester, New York, United States In the April 25, 1953 issue of the biomedical journal Nature, three articles were published on the structural characteristics of DNA. One was a three-dimensional model of DNA constructed by James Watson and Francis Crick of the Cavendish Laboratory, Cambridge University, who did no experiments to arrive at…
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Karl Landsteiner and the discovery of blood groups
Safia BenaissaMostganem, Algeria Karl Landsteiner was the Austrian scientist who recognized that humans had different blood groups and made it possible for physicians to transfuse blood safely. He entered medical school at the University of Vienna, where he developed an interest in chemistry. After taking off a year to complete his military service he returned…