Nettie Maria Stevens, Ph.D.
|Biology Department||Bryn Mawr College, Bryn Mawr, PA, United States|
Nettie Maria Stevens is one of the most fascinating and overlooked scientists of the late 19th and early 20th Centuries. A school teacher, she entered graduate school in her 30s and completed her Ph.D. under Thomas Hunt Morgan. Among other contributions, it was Stevens who introduced the study of Drosophila to THM's lab. Morgan described her as one of the most technically gifted graduate students he ever worked with. She also made fundamental contribution to science, including the discovery of sex chromosomes, independently but at about the same time as Edmund Beecher Wilson. She died of breast cancer after completing her Ph.D. but before she could take up a faculty position.