Prof. August Weismann

August Weismann on germ-plasm variation.

August Weismann is famous for having argued against the inheritance of acquired characters. However, an analysis of his work indicates that Weismann always held that changes in external conditions, acting during development, were the necessary causes of variation in the hereditary material. For much of his career he held that acquired germ-plasm variation was inherited. An irony, which is in te...

The Germ-Plasm: a Theory of Heredity (1893), by August Weismann

Friedrich Leopold August Weismann [3] published Das Keimplasma: eine Theorie der Vererbung (The Germ-Plasm: a Theory of Heredity [2], hereafter The Germ-Plasm) while working at the University of Freiburg [4] in Freiburg, Germany in 1892. William N. Parker, a professor in the University College [5] of South Wales and Monmouthshire in Cardiff, UK, translated The Germ-Plasm into English in 1893. I...

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Weismann-Netter-Stuhl Syndrome:A family report

Weismann-Netter-Stuhl (WNS) syndrome is a rare skeletal anomaly that affects the diaphyseal part of both the tibiae and fibulae with posterior cortical thickening and anteroposterior bowing. This anomaly is usually bilateral and symmetrical. The patients are generally of short stature. In some cases, a family history suggesting genetic transmission of a mutation with an unknown locus has been r...

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distinct roles in heparan sulfate modifications and embryonic and larval development in Caenorhabditis elegans Katsufumi Dejima , Daisuke Murata, Souhei Mizuguchi, Kazuko H. Nomura, Tomomi Izumikawa, Hiroshi Kitagawa, Keiko Gengyo-Ando , Sawako Yoshina, Tomomi Ichimiya, Shoko Nishihara, Shohei Mitani and Kazuya Nomura* From the Department of Biology, Faculty of Sciences 33, Kyushu University, F...