Weismann on Heredity 1
نویسندگان
چکیده
منابع مشابه
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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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...
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In experimental organisms such as fruit flies and mice, increased frequencies in germ cell mutations have been detected following exposure to ionizing radiation. In contrast, there has been no clear evidence for radiation-induced germ cell mutations in humans that lead to birth defects, chromosome aberrations, Mendelian disorders, etc. This situation exists partly because no sensitive and pract...
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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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ژورنال
عنوان ژورنال: Nature
سال: 1888
ISSN: 0028-0836,1476-4687
DOI: 10.1038/038156a0