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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.
Apr 30, 2024 · Nettie Stevens (born July 7, 1861, Cavendish, Vermont, U.S.—died May 4, 1912, Baltimore, Maryland) was an American biologist and geneticist who was one of the first scientists to find that sex is determined by a particular configuration of chromosomes.
- The Editors of Encyclopaedia Britannica
Learn about the life and work of Nettie Stevens, a pioneer of genetics who discovered the role of X and Y chromosomes in sex determination. Find out how she overcame social and scientific challenges to make her groundbreaking discovery.
Nettie Stevens was a pioneer in sex determination research who received a grant from Carnegie Science in 1904 and 1905. She demonstrated that the X and Y chromosomes were associated with gender and inherited traits, and challenged the prevailing environmental theories.
Jun 20, 2010 · Learn about the life and achievements of Nettie Maria Stevens, a cytologist who discovered the role of chromosomes in sex determination. She faced challenges as a woman scientist and was not widely recognized for her work until after her death.
May 12, 2023 · Nettie Stevens was a pioneer in the study of sex determination and chromosomal inheritance, but her discoveries were often overlooked or credited to others. Learn about her life, research and legacy in this article by Anjali Dhanekula.
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Nettie Stevens (1861-1912) was a pioneer in the fields of biology, genetics, and zoology. She identified the Y chromosome and its role in male development, and contributed to the chromosomal and Mendelian theories of inheritance.
