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 ?
Y sin embargo lo hizo: Barbara McClintock demostro, antes que sus colegas hombres, que los genes del maiz pueden transferir sus posiciones --se conocen como genes saltarines--en el mapa cromosomico, abriendo brecha en la comprension de los procesos hereditarios.
The gold medal in the Younger Reader category went to Jim Aylsworth and Barbara McClintock, author and illustrator of My Grandfather's Coat.
Sin embargo, investigadores de otros campos de la ingenieria molecular, como la Premio Nobel de Medicina Barbara McClintock, descubridora de los genes saltarines o transposones, consideran que son agentes evolutivos y de variabilidad genetica entre las especies, por lo que aseguran que si juegan un papel muy importante en la transmision del material genetico.
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.
Aimed at young readers, the books feature such well-known authors and artists as Jules Feiffer, Neal Gaiman, Lemony Snicket, Maurice Sendak, Gahan Wilson, and Barbara McClintock.
Telomere and Telomerase: Brief review of a history initiated by Hermann Muller and Barbara McClintock
The stamps celebrate thermodynamicist Josiah Willard Gibbs, geneticist Barbara McClintock, mathematician John von Neumann, and physicist Richard P.