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Who is Barbara McClintock?
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Did Barbara McClintock discover jumping genes?
2 days ago · Barbara McClintock (born June 16, 1902, Hartford, Connecticut, U.S.—died September 2, 1992, Huntington, New York) was an American scientist whose discovery in the 1940s and ’50s of mobile genetic elements, or “ jumping genes,” won her the Nobel Prize for Physiology or Medicine in 1983.
- The Editors of Encyclopaedia Britannica
Thesis. A Cytological and Genetical Study of Triploid Maize (1927) Signature. Barbara McClintock (June 16, 1902 – September 2, 1992) was an American scientist and cytogeneticist who was awarded the 1983 Nobel Prize in Physiology or Medicine. McClintock received her PhD in botany from Cornell University in 1927.
McClintock was recognized throughout her career as one of the most distinguished scientists of the 20th century. In 1944, she became the third woman elected to the National Academy of Sciences. She was the first woman to become president of the Genetics Society of America, to which she was elected in 1945.
As previously mentioned, McClintock is best known for her discovery of transposable elements through experimentation with maize.
Sep 2, 1992 · Smithsonian Institution Archives. Barbara McClintock was a Nobel prize-winning plant geneticist, whose multiple discoveries in maize have changed our understanding of genetics. Born in...
She demonstrated the phenomenon of chromosomal crossover, which increases genetic variation in species. She also discovered transposition – genes moving about within chromosomes – often described as jumping genes, and showed that genes are responsible for switching the physical traits of an organism on or off.
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