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- Believing that mitotic cell division of the fertilized egg is the mechanism by which future parts of a developing organism are determined, Roux began in the 1880s an experimental program using frog eggs. He destroyed one of the two initial subdivisions (blastomeres) of a fertilized frog egg, obtaining half an embryo from the remaining blastomere.
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Roux was a German zoologist and pioneer of experimental embryology. Described " Entwicklungsmechanik " (mechanisms) a physiological approach to embryology. One experiment used a heated needle to kill at the frog 2 cell stage one of the blastomeres. Doctoral thesis - On the bifurcation of blood vessels.
Jan 1, 2012 · This finding contrasted with Wilhelm Roux's experiments with frog eggs from which Roux had concluded that embryonic cells have predetermined fates—an embryonic cell couldn't form into one thing when separated from other embryonic cells and form into something else when left unseparated.
Apr 4, 2024 · Wilhelm Roux was a German zoologist whose attempts to discover how organs and tissues are assigned their structural form and functions at the time of fertilization made him a founder of experimental embryology. A student of German biologist Ernst Haeckel, Roux studied in Jena, Berlin, and.
- The Editors of Encyclopaedia Britannica
In 1888, Roux published the results of a series of defect experiments in which he took 2 and 4 cell frog embryos and killed half of the cells of each embryo with a hot needle. He reported that they grew into half-embryos and surmised that the separate function of the two cells had already been determined.
Literature Roux, Wilhelm, 1850-1924 Experiments Frogs Ova. Roux, Wilhelm, 1850-1924. Wilhelm Roux was an influential figure in the early history of experimental embryology. Although he originally studied medicine, he was invited to be a Privatdozentur, or unsalaried lecturer, at the Anatomical Institute in Breslau (Wroclaw), Poland, in 1879.
His experiments on how the gravitational orientation of frog eggs affects their cleavage plane inspired embryologists such as Wilhelm Roux and Gustav Born to conduct their own experiments using frog eggs.
2 days ago · More recently the experiments of Pfluger and of Roux on this egg have turned the attention of embryologists to the study of development from an experimental standpoint. Owing to the ease with which the frog's egg can be obtained, and its tenacity of life in a confined space, as well as its suitability for experimental work, it is an admirable ...
