Barbara McClintock


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McClintock, Barbara,

1902–92, American geneticist. She discovered that certain genetic material, "transposable elements" or "jumping genes" (now called transposons), shifted its location in the chromosomes from generation to generation. At first ignored, her research was later recognized as a major contribution to DNA research. In 1983 she was awarded the Nobel Prize in Physiology or Medicine.

McClintock, Barbara

(1902–92) geneticist; born in Hartford, Conn. She joined Cornell (1927–36), then served the National Research Council (1931–33) and the Guggenheim Foundation (1933–34). She joined the University of Missouri (1935–41), then became a staff member of the Carnegie Institution's laboratory in Cold Spring Harbor, N.Y. (1942–67), where she remained after her retirement. A solitary person, she devoted her life to the genetics of maize. Her discoveries in the 1940s and 1950s, that genes can control the behavior of other genes and can transpose themselves ("jump") on the chromosome, were belatedly recognized in her 1983 award of the Nobel Prize in physiology.
References in periodicals archive ?
20, 2015 /PRNewswire-iReach/ -- Jim Aylesworth and Barbara McClintock, author and illustrator of My Grandfather's Coat , Loic Dauvillier, Marc Lizano and Greg Salsedo, authors and illustrators of Hidden: A Child's Story of the Holocaust and Donna Jo Napoli, author of Storm are the 2015 winners of the Sydney Taylor Book Award.
She reviews the evolutionary, psychoanalytic, and developmental theories of pretend play and creativity and the cognitive and affective processes involved (with transcripts of children's play for illustration), and presents case studies of adults like Steve Jobs, Barbara McClintock, Temple Grandin, Bob Dylan, Stanley Kunitz, and Frida Kahlo that look at the processes involved in science, technology, and the arts.
Transposons were discovered in the 1940s by Barbara McClintock, who was rewarded in 1983 with the Nobel Prize for Physiology or Medicine.
Barbara McClintock, the 1983 Nobel laureate in Physiology or Medicine, was an American scientist and one of the world's most distinguished cytogeneticists.
Transposable elements are found in all organisms, but were discovered in maize by Nobel Prize winner Barbara McClintock more than 60 years ago," said Rob Martienssen of Cold Spring Harbor Laboratory.
When I read those words, I couldn't help but sense the specter of Barbara McClintock floating between the lines of the story and behind the work of the multi-institution genome project.
On the other hand, the chapter on maize leans toward providing a sympathetic portrait of Barbara McClintock but the experimental details about the difficulty of studying corn genetics is somewhat unclear.
In The Tangled Field, Comfort poses a biography of geneticist Barbara McClintock.
He tells a story about a biologist, Barbara McClintock, working to develop new and better strains of corn.
Half a century ago, with only classical breeding techniques at her disposal, American plant geneticist Dr Barbara McClintock proved the existence of mobile genetic elements that could alter or abolish supposedly fixed hereditary traits in maize.
A pair of eyeglasses, a microscope, a cornfield, and a keen mind were the only tools that plant geneticist Barbara McClintock used in the corn genetics work that earned her a Nobel Prize.
Fedoroff's research interests, like those of the Nobel Prize winner, Barbara McClintock, have been focused on using the maize plant to unravel heretofore hidden genetic secrets.