Westfield Normal School Stanford University (BA, MA) Bryn Mawr College (PhD)
Known for
XY sex-determination system
Scientific career
Fields
Genetics
Institutions
Bryn Mawr College, Carnegie Institution of Washington
Thesis
Further studies on the ciliate Infusoria, Licnophora and Boveria(1903)
Doctoral advisor
Thomas Hunt Morgan
Doctoral students
Alice Middleton Boring
Nettie Maria Stevens (July 7, 1861 – May 4, 1912)[1] was an American geneticist who discovered sex chromosomes. In 1905, soon after the rediscovery of Mendel's paper on genetics in 1900, she observed that male mealworms produced two kinds of sperm, one with a large chromosome and one with a small chromosome. When the sperm with the large chromosome fertilized eggs, they produced female offspring, and when the sperm with the small chromosome fertilized eggs, they produced male offspring. The pair of sex chromosomes that she studied later became known as the X and Y chromosomes.[2][3][4]
^"Nettie Stevens | American biologist and geneticist". Encyclopedia Britannica. Retrieved August 12, 2019.
^Brush, Stephen G. (June 1978). "Nettie M. Stevens and the Discovery of Sex Determination by Chromosomes". Isis. 69 (2): 162–172. doi:10.1086/352001. JSTOR 230427. PMID 389882. S2CID 1919033.
^"Nettie Maria Stevens – DNA from the Beginning". www.dnaftb.org. Retrieved July 7, 2016.
^John L. Heilbron (ed.), The Oxford Companion to the History of Modern Science, Oxford University Press, 2003, "genetics".
and Y chromosomes. Nettie Maria Stevens was born on July 7, 1861, in Cavendish, Vermont, to Julia (née Adams) and Ephraim Stevens. In 1863, after the...
twentieth-century cases illustrating the Matilda effect include those of NettieStevens, Lise Meitner, Marietta Blau, Rosalind Franklin, and Jocelyn Bell Burnell...
which molecules in the cell were responsible for inheritance. In 1900, NettieStevens began studying the mealworm. Over the next 11 years, she discovered...
system in 1905—that human males have XY and females XX sex chromosomes. NettieStevens independently made the same discovery the same year and published shortly...
disagreement with the majority. With the retirement of Justice John Paul Stevens, Ginsburg became the senior member of what was sometimes referred to as...
it." Critic Harold Bloom has placed her alongside Walt Whitman, Wallace Stevens, Robert Frost, T. S. Eliot, and Hart Crane as a major American poet, and...
cytologists: Edmund Beecher Wilson, NettieStevens, Walter Sutton and Theophilus Painter were all influenced by Boveri (Wilson, Stevens, and Painter actually worked...
Gotse Delchev, Macedonian Bulgarian revolutionary IMRO (b. 1872) 1912 – NettieStevens, American geneticist credited with discovering sex chromosomes (b. 1861)...
pp. 131–132, 139. ISSN 0012-9011. Retrieved October 10, 2014. Otfinoski, Steven (2010). African Americans in the Performing Arts. Infobase Publishing. p...
delivers a haunting, powerful 're-membering'". Expatica – via Neo-Griot. Winn, Steven (October 20, 2011). "Toni Morrison adds twist to 'Desdemona'". SF Gate....
1860 – Gustav Mahler, Austrian composer and conductor (d. 1911) 1861 – NettieStevens, American geneticist (d. 1912) 1869 – Rachel Caroline Eaton, American...
U.S. Secretary of the Treasury and Secretary of Commerce, 1903–1904 NettieStevens (1883) - discoverer of the X and Y chromosomes Eduardo C. Robreno (1967)...
Caroline Schermerhorn Astor. Fort Stevens in New York was named for Wharton's maternal great-grandfather, Ebenezer Stevens, a Revolutionary War hero and general...
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