Watson Wat·son (wŏt'sən), James Dewey. Born 1928.
American biologist who with Francis Crick proposed a spiral model, the double helix, for the molecular structure of DNA. He shared a 1962 Nobel Prize for advances in the study of genetics.
|Adams (ād'əmz) Pronunciation Key
American astronomer who demonstrated that the essential brightness of a star could be calculated by studying its spectrum and who introduced a method for measuring the distance of stars based on their brightness. In 1915 he discovered Sirius B, the first known white dwarf star, and his measurement of the gravitational red shift in the light leaving its surface was accepted as evidence for Albert Einstein's general theory of relativity.
|Watson (wŏt'sən) Pronunciation Key
American biologist who, working with Francis Crick, identified the structure of DNA in 1953. By analyzing the patterns cast by x-rays striking DNA molecules, they discovered that DNA has the structure of a double helix, two spirals linked together by bases in ladderlike rungs. For this work Watson and Crick shared with Maurice Wilkins the 1962 Nobel Prize for physiology or medicine.