Nettie Stevens
Nettie Stevens was an American geneticist. Born July 7, 1861, in Cavendish. Died May 4, 1912, in Baltimore. Educated at Westfield State University and Stanford University. Awards include National Women's Hall of Fame.
Facts
17 facts · 2 confirmed by two sources · 8 cited · 7 from one source
Where this comes from
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What Wikidata says · copied November 14, 2026 · revision 2568218864
- Described as
- American geneticist (1861–1912)
- Other names
- Nettie Maria Stevens, Nettie M. Stevens, N. M. Stevens
- Born
- July 7, 1861 · 3 references
- Died
- May 4, 1912 · 3 references
- Born in
- Cavendish · 1 reference
- Died in
- Baltimore · 1 reference
- Buried in
- Fairview Cemetery
- Cause of death
- breast cancer · 1 reference
- Citizen of
- United States
- Occupation
- geneticist · 1 reference; zoologist; librarian
- Education
- Westfield State University; Stanford University · 1 reference; Bryn Mawr College (–1903) · 1 reference; Westford Academy · 1 reference
- Awards
- National Women's Hall of Fame (1994) · 1 reference
- Field
- biology
- Mother
- Julia Maria Stevens · 1 reference
- Wikipedias with a page
- 39
Wikidata item Q433487 (wikidata.org/wiki/Q433487), public domain (CC0). Copied November 14, 2026.
What Wikipedia says · copied November 14, 2026 · revision 1381060304
Nettie Maria Stevens (July 7, 1861 – May 4, 1912) was the 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.
- Born, in its opening lines
- July 7, 1861
- Died, in its opening lines
- May 4, 1912
From the Wikipedia article “Nettie Stevens” (en.wikipedia.org/wiki/Nettie_Stevens), by its contributors, under CC BY-SA 4.0 (creativecommons.org/licenses/by-sa/4.0/). Copied November 14, 2026; not changed.
Confirmed Two sources agree. Cited One source, and it names where it got it. One source One source, without a reference of its own. Sources disagree The sources disagree. We show the best-supported value and keep theirs below.
