Wilson edmond b (2 resultados)

Arch. mikr. Anat., 77. - Bonn, Strauss, 1911, 8°, IV, VI, 556; 317 pp.; 34 Tafeln und 112 Textfiguren, Halbledereinband d.Zt.; feines Expl. First Edition! A review-type contribution by the American cytologist E. B. Wilson on sex determination, published in German-language journal despite its English title. According to the abstract, it distinguishes three approaches to the problem: experiments on external influences on the germ, hybridisation experiments on sex-limited inheritance, and microscopic study of the germ cells. It builds on Wilson's 1905 demonstration in Protenor belfragei (13 chromosomes in the male, 14 in the female), which linked the X chromosome to sex. Cited early, e.g. by Davenport (1912). An important document in the history of the chromosome theory of sex. Further Reports of intrest: Friedrich Meves, Chromosomenlängen bei Salamandra, nebst Bemerkungen zur Individualitätstheorie der Chromosomen.Paula Hertwig, Durch Radiumbestrahlung hervorgerufene Veränderungen in den Kernteilungsfiguren der Eier von Ascaris megalocephala. el.Oscar Hertwig, Die Radiumkrankheit tierischer Keimzellen.Günther Hertwig, Radiumbestrahlung unbefruchteter Froscheier Edmund Beecher Wilson (1856-1939) was an American zoologist and cytologist, born on 19 October 1856 in Geneva, Illinois, and died on 3 March 1939 in New York. He studied at Yale and took his doctorate at Johns Hopkins University. From 1891 he taught at Columbia University, where he built up the zoology department and brought in Thomas Hunt Morgan in 1904. He spent his summers at the Marine Biological Laboratory in Woods Hole, studying the cell lineage of marine animals such as the annelid Nereis. His textbook The Cell in Development and Inheritance (1896) became a classic of modern biology. In 1905, independently of Nettie Stevens, he established chromosomal sex determination, which he later reviewed in "The Sex Chromosomes" (1911).…

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