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Barbara McClintock was a pioneer in the field of cytogenetics, and she left a lasting legacy of superb experimental inquiry. McClintock’s breeding experiments with maize are particularly notable ...
Dec 11, 2012 · For much of the 20th century, genes were considered to be stable entities arranged in an orderly linear pattern on chromosomes, like beads on a string ().In the late 1940s, Barbara McClintock challenged existing concepts of what genes were capable of when she discovered that some genes could be mobile.
Dec 10, 2012 · Barbara McClintock at her laboratory desk, 1971. Open in viewer. By the 1970s the great strides made in molecular biology led to the discovery of transposons in other organisms, starting with viruses and bacteria. We now know that transposons constitute more than 65% of our genomes and approximately 85% of the maize genome.
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Apr 3, 2012 · 1944: Jumping Genes. Barbara McClintock discovers that genes can jump around on chromosomes, showing that the genome is more dynamic than previously thought. Since the studies on genetic linkage in Drosophila conducted in Morgan's lab, genes had been considered to have fixed positions on chromosomes. Using corn as her model organism, McClintock ...
Transposable elements, or "jumping genes", were first identified by Barbara McClintock more than 50 years ago. Why are transposons so common in eukaryotes, and exactly what do they do? In addition ...
Oct 25, 2018 · However, in the 1930s and 40s, McClintock’s work showed that some genes did not exist in fixed position on chromosomes, but could actually jump around from one part of the chromosome to another.
Sep 27, 2023 · To celebrate the 40th anniversary of Barbara McClintock´s Nobel Prize, we have put together a Collection of recent articles on plant “jumping genes” published across Springer Nature journals ...
