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August Friedrich Leopold Weismann FRS (For), HonFRSE, LLD (17 January 1834 – 5 November 1914) was a German evolutionary biologist. Fellow German Ernst Mayr ranked him as the second most notable evolutionary theorist of the 19th century, after Charles Darwin. Weismann became the Director of the Zoological Institute and the first Professor of ...
Apr 14, 2015 · Churchill F (1999) August Weismann: A developmental evolutionist. In: August Weismann. Ausgewählte Briefe und Dokumente, Vol. 2 (Churchill F, Risler H, eds), 749–798. Freiburg im Breisgau: Universitätsbibliothek. Google Scholar. Griesemer J (in press) Tracking organic processes: Representations and research styles in classical embryology ...
The forerunner of Modern Genetics, August Weismann was born in Germany in 1834. Basically he was a biologist who cancelled the popular belief that acquired characters are inherited. He demonstrated his view that new born mice still managed to inherit the complete tail structure even after twenty two generations of cutting the tail of mice.
Yawen Zou. August Friedrich Leopold Weismann studied how the traits of organisms developed and evolved in a variety of organisms, mostly insects and aquatic animals, in Germany in the late nineteenth and early twentieth centuries. Weismann proposed the theory of the continuity of germ-plasm, a theory of heredity.
Neo-Darwinism is generally used to describe any integration of Charles Darwin 's theory of evolution by natural selection with Gregor Mendel 's theory of genetics. It mostly refers to evolutionary theory from either 1895 (for the combinations of Darwin's and August Weismann 's theories of evolution) or 1942 ("modern synthesis"), but it can mean ...
Jan 8, 2015 · In this essay I discuss the contents and the context of Italian zoologist and entomologist Carlo Emery’s discussion of the germ-plasm theory. August Weismann considered him one of his very few creditable supporters, and encouraged him to publish his theoretical reflections. In his Gedanken zur Descendenz- und Vererbungstheorie, which appeared between 1893 and 1903 as a series of five essays ...
August Weismann points out the distinction in animals between the somatic cell line and the germ cells, stressing that only changes in germ cells are transmitted to further generations. Edouard van Beneden announced the principles of genetic continuity of chromosomes and reported the occurrence of chromosome reduction at germ cell formation.
