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dc.creatorKearl, Meganen_US
dc.date.accessioned2012-05-25T15:48:27Z
dc.date.available2012-05-25T15:48:27Z
dc.date.created2012-01-01en_US
dc.date.issued2012-05-25
dc.identifier.otherembryo:128628en_US
dc.identifier.urihttp://hdl.handle.net/10776/2325
dc.description.abstractHans Adolf Eduard Driesch was a late-nineteenth and early-twentieth century philosopher and developmental biologist. In the spring of 1891 Driesch performed experiments using two-celled sea urchin embryos, the results of which challenged the then-accepted understanding of embryo development. Driesch showed that the cells of an early embryo, when separated, could each continue to develop into normal larval forms. This finding contrasted with Wilhelm Roux's experiments with frog eggs from which Roux concluded that embryonic cells have predetermined fates - they cannot form into one thing when separated, and a different form when left unseparated. To Roux, embryos were made up of a mosaic of cells, all of which were important and necessary for the viable embryos to form. Driesch, on the other hand, was able to show that individual cells resulting from cleavage of the fertilized egg were all able to form into viable embryos, and not just predetermined parts that Roux believed.en_US
dc.format.mediumtext/xhtmlen_US
dc.language.isoengen_US
dc.publisherArizona State University. School of Life Sciences. Center for Biology and Society. Embryo Project Encyclopedia.en_US
dc.relation.ispartofEmbryo Project Encyclopediaen_US
dc.rightsen_US
dc.rights© Arizona Board of Regentsen_US
dc.subjectExperimenten_US
dc.subject.lcshDriesch, Hans, 1867-1941en_US
dc.title"The Potency of the First Two Cleavage Cells in Echinoderm Development. Experimental Production of Partial and Double Formations" (1891-1892), by Hans Drieschen_US
dc.typeTexten_US
dc.rights.licenseLicensed as Creative Commons Attribution-NonCommercial-Share Alike 3.0 Unported (CC BY-NC-SA 3.0) http://creativecommons.org/licenses/by-nc-sa/3.0/
dc.subject.embryoExperimentsen_US
dc.subject.embryoPublicationsen_US
dc.subject.tagSea urchinsen_US
dc.description.typeArticlesen_US
dc.date.createdstandard2012-01-01


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