Birthdate: July 7, 1861
Sun Sign: Cancer
Birthplace: Cavendish, Vermont, United States
Died: May 4, 1912
Nettie Stevens, an American geneticist, made a significant impact with her discovery of sex chromosomes. In 1905, she noted the influence of various sperm types on determining offspring sex in mealworms. This breakthrough led to the identification of the X and Y chromosomes, transforming the understanding of genetics and heredity. Stevens’ research greatly advanced the study of sex determination mechanisms in genetics, leaving a lasting influence on scientific research.
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