Portrait of Nettie Stevens
Nettie Maria Stevens independently developed the idea of sex determination by chromosomes.
DNAFTB Animation 9: Nettie Stevens and Edmund Wilson explain how biological sex is determined by special chromosomes.
The relationships between Theodor Boveri, Edmund Wilson, Nettie Stevens and Thomas Hunt Morgan.
Edmund Beecher Wilson independently developed the idea of sex determination by chromosomes.
Morgan's criticism of Stevens' and Wilson's sex determination theory.
Stevens' and Wilson's sex determination work: who was first to make the discovery?
Levene's laboratory with some of his students: (L-R) W. Jacobs, D. Slyke, G. Meyer (1909).
Theodor Boveri described the process of meiosis. He also showed that although chromosomes may look similar, they have specific hereditary qualities.
Edmund Beecher Wilson, 1925