Barbara McClintock, American Cytogeneticist
Bildnummer 13355311
| Barbara McClintock holding Lasker Award and an ear of corn. McClintock (1902-1992) was one of the world's most distinguished cytogeneticists. She did groundbreaking research on the phenomenon of how genes in chromosomes could jump"" during the breeding of maize plants. She also showed how certain genes were responsible for turning on or off physical characteristics, such as the color of leaves or individual corn kernels. She developed theories to explain the suppression or expression of genetic information from one generation of maize plants to the next that defied the common wisdom of molecular biology prevalent during the 1950s. In the early 1960s, she traveled extensively, collected maize samples that demonstrated interesting evolutionary characteristics. She and her colleagues spent two decades assembling data on differences in South American maize, which were published in 1981 as ""The Chromosomal Constitution of Races of Maize"". In 1983, at the age of 81, she received the Nobel Prize in Physiology or Medicine for her work on mobile genetic elements, the first woman to receive an unshared Nobel Prize in that category. Photographed by Bernard Gotfryd, 1981." | |
| Lizenzart: | Lizenzpflichtig |
| Credit: | Science Photo Library / Library of Congress |
| Bildgröße: | 3551 px × 4921 px |
| Modell-Rechte: | nicht erforderlich |
| Eigentums-Rechte: | nicht erforderlich |
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