Conrad Hal Waddington, 8 November 1905--26 September 1975.
نویسنده
چکیده
منابع مشابه
Diachronic Biology Meets Evo-Devo: C. H. Waddington’s Approach to Evolutionary Developmental Biology1
SYNOPSIS. Conrad Hal Waddington (1905–1975) did not respect the traditional boundaries established between genetics, embryology, and evolutionary biology. Rather, he viewed them together as a ‘‘diachronic biology.’’ In this diachronic biology, evolutionary change was caused by heritable alterations in development. Stabilizing selection within the embryo was followed by normative selection on th...
متن کامل"Experiments on Embryonic Induction III. A Note on Inductions by Chick Primitive Streak Transplanted to the Rabbit Embryo" (1934), by Conrad Hal Waddington
Conrad Hal Waddington?s ?Experiments on Embryonic Induction III,? published in 1934 in the Journal of Experimental Biology, describes the discovery that the primitive streak [7] induces the mammalian embryo. Waddington?s hypothesis was that a transplanted primitive streak [7] could induce neural tissue in the ectoderm [8] of the rabbit [9] embryo. The primitive streak [7] defines the axis of an...
متن کاملOrganisers and Genes (1940), by Conrad Hal Waddington
Conrad Hal Waddington?s Organisers and Genes [4], published in 1940, is a summary of available research and theoretical framework for many concepts related to tissue differentiation [5] in the developing embryo. The book is composed of two main conceptual sections. The first section explores the action and nature of the organizer [6], while the second section delves into genes [7] and their inf...
متن کامل"Experiments on the Development of Chick and Duck Embryos, Cultivated in vitro" (1932), by Conrad Hal Waddington
Conrad Hal Waddington?s ?Experiments on the Development of Chick and Duck Embryos, Cultivated in vitro [5],? published in 1932 in Philosophical Transactions of the Royal Society of London, Series B, compares the differences in the development of birds [6] and amphibians [7]. Previous experiments focused on the self differentiation [8] of individual tissues in birds [6], but Waddington wanted to...
متن کاملFrom Epigenesis to Epigenetics
One continuous thread in this volume is the name of Conrad H. Waddington (1905–1975), the developmental biologist known as the inventor of the term epigenetics. After some biographical notes on his life, this article explores the meaning of the Waddingtonian equation and the context wherein it was developed. This equation holds that epigenesis + genetics = epigenetics, and refers in retrospect ...
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عنوان ژورنال:
- Biographical memoirs of fellows of the Royal Society. Royal Society
دوره 23 شماره
صفحات -
تاریخ انتشار 1977