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Morgan, Thomas Hunt

Morgan, Thomas Hunt (1866–1945) US geneticist, who held professorships at Bryn Mawr College (1891–1904), Columbia University (1904–28), and the California Institute of Technology (1928–45). He established that chromosomes were the carriers of Mendel's `factors' of inheritance (genes). Working with fruit flies (Drosophila), he demonstrated the phenomenon of linkage and modified Mendel's law of independent assortment by stating that this could only apply to genes located on different chromosomes. He showed that linkage could be broken by crossing over and went on to produce the first chromosome maps. For his work Morgan was awarded the 1933 Nobel Prize for physiology or medicine.

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Bryn Mawr College

Bryn Mawr College, at Bryn Mawr, Pa; undergraduate for women, graduate coeducational; opened 1885 by the Society of Friends, with a bequest from Joseph W. Taylor of Burlington, N.J. Modeled on a group curriculum plan at Johns Hopkins, Bryn Mawr was one of the first women's colleges in the United States to offer graduate degrees. The library is especially noted for its collection of rare books and medieval incunabula. The school maintains a cooperative program with Haverford College, Swarthmore College, and the Univ. of Pennsylvania, and an exchange program with Spelman College.

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