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Nettie Stevens

1861 - 1912

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Nettie Maria Stevens (July 7, 1861 – May 4, 1912) 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. Read more on Wikipedia

Since 2007, the English Wikipedia page of Nettie Stevens has received more than 1,205,380 page views. Her biography is available in 32 different languages on Wikipedia (up from 30 in 2019). Nettie Stevens is the 134th most popular biologist (up from 181st in 2019), the 1,374th most popular biography from United States (up from 1,831st in 2019) and the 22nd most popular American Biologist.

Memorability Metrics

  • 1.2M

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  • 60.03

    Historical Popularity Index (HPI)

  • 32

    Languages Editions (L)

  • 7.49

    Effective Languages (L*)

  • 2.55

    Coefficient of Variation (CV)

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Among biologists, Nettie Stevens ranks 134 out of 841Before her are Carl Woese, Elias Magnus Fries, Walther Flemming, Macfarlane Burnet, Joshua Lederberg, and Hamilton O. Smith. After her are Salvador Luria, Georg Forster, Emmanuelle Charpentier, Charles Bonnet, Gerald Edelman, and Wilhelm Johannsen.

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Among people born in 1861, Nettie Stevens ranks 32Before her are Edmund Allenby, 1st Viscount Allenby, Anton Arensky, William Bateson, Henry Gantt, Armando Diaz, and István Tisza. After her are Solomon R. Guggenheim, Pierre Duhem, Nikolay Zelinsky, Luigi Facta, Infanta Marie Anne of Portugal, and William C. Durant. Among people deceased in 1912, Nettie Stevens ranks 28Before her are Benjamin Guggenheim, George Darwin, Princess Marie of Hohenzollern-Sigmaringen, Osborne Reynolds, James Paul Moody, and Henry Tingle Wilde. After her are Nogi Maresuke, Bolesław Prus, Jack Phillips, W. T. Stead, William Booth, and Princess Elisabeth of Saxony.

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In United States

Among people born in United States, Nettie Stevens ranks 1,374 out of 18,182Before her are Joshua Lederberg (1925), Iris Apfel (1921), William Fichtner (1956), Percy Spencer (1894), Hamilton O. Smith (1931), and Bernard Baruch (1870). After her are Rex Stout (1886), David O. Selznick (1902), Conchata Ferrell (1943), Buck Henry (1930), Annie Leibovitz (1949), and Alan Silvestri (1950).

Among BIOLOGISTS In United States

Among biologists born in United States, Nettie Stevens ranks 22Before her are George Davis Snell (1903), Norman Borlaug (1914), Edward B. Lewis (1918), Carl Woese (1928), Joshua Lederberg (1925), and Hamilton O. Smith (1931). After her are Gerald Edelman (1929), Daniel Nathans (1928), Robert Whittaker (1920), J. Michael Bishop (1936), Paul Greengard (1925), and Temple Grandin (1947).