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    The Carapacial Ridge of Turtles 

    Caniglia, Guido (Arizona State University. School of Life Sciences. Center for Biology and Society. Embryo Project Encyclopedia., 2012-05-25)
    Two main elements characterize the skeletal morphology of turtles: the carapace and the plastron. For a turtle, the carapacial ridge begins in the embryo as a bulge posterior to the limbs but on both sides of the body. ...
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    Richard Woltereck's Concept of Reaktionsnorm 

    Peirson, B. R. Erick (Arizona State University. School of Life Sciences. Center for Biology and Society. Embryo Project Encyclopedia., 2012-11-05)
    Richard Woltereck first described the concept of Reaktionsnorm (norm of reaction) in his 1909 paper 'Weitere experimentelle Untersuchungen uber Art-veranderung, speziell uber das Wesen quantitativer Artunterschiede bei ...
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    Gastrulation in Mus musculus (common house mouse) 

    Wolter, Justin M. (Arizona State University. School of Life Sciences. Center for Biology and Society. Embryo Project Encyclopedia., 2012-11-05)
    As mice embryos develop, they undergo a stage of development called gastrulation. The hallmark of vertebrate gastrulation is the reorganization of the inner cell mass (ICM) into the three germ layers: ectoderm, mesoderm, ...
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    The Source-Sink Model 

    Resnik, Jack (Arizona State University. School of Life Sciences. Center for Biology and Society. Embryo Project Encyclopedia., 2012-08-13)
    The source-sink model, first proposed by biologist Francis Crick in 1970, is a theoretical system for how morphogens distribute themselves across small fields of early embryonic cells. A morphogen is a substance that ...
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    Epigenetic Landscape 

    Navis, Adam R. (Arizona State University. School of Life Sciences. Center for Biology and Society. Embryo Project Encyclopedia., 2012-05-08)
    The epigenetic landscape is a concept representing embryonic development. It was proposed by Conrad Hal Waddington to illustrate the various developmental pathways a cell might take toward differentiation. The epigenetic ...
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    Epidermal Growth Factor 

    Navis, Adam R. (Arizona State University. School of Life Sciences. Center for Biology and Society. Embryo Project Encyclopedia., 2012-05-10)
    Epidermal growth factor is a signaling molecule that stimulates the growth of epidermal tissues during development and throughout life. Stanley Cohen discovered epidermal growth factor (EGF) during studies of nerve growth ...
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    Germ Layers 

    MacCord, Kate (Arizona State University. School of Life Sciences. Center for Biology and Society. Embryo Project Encyclopedia., 2013-10-03)
    A germ layer is a group of cells in an embryo that interact with each other as the embryo develops and contribute to the formation of all organs and tissues. All animals, except perhaps sponges, form two or three germ ...
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    The Role of the Notch Signaling Pathway in Myogenesis 

    Wolter, Justin M. (Arizona State University. School of Life Sciences. Center for Biology and Society. Embryo Project Encyclopedia., 2013-07-26)
    Among other functions, the Notch signaling pathway forestalls the process of myogenesis in animals. The Notch signaling pathway is a pathway in animals by which two adjacent cells within an organism use a protein named ...
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    Ernst Haeckel's Biogenetic Law (1866) 

    Barnes, M. Elizabeth (Arizona State University. School of Life Sciences. Center for Biology and Society. Embryo Project Encyclopedia., 2014-05-03)
    The biogenetic law is a theory of development and evolution proposed by Ernst Haeckel in Germany in the 1860s. It is one of several recapitulation theories, which posit that the stages of development for an animal embryo ...
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    The Meckel-Serres Conception of Recapitulation 

    O'Connell, Lindsey (Arizona State University. School of Life Sciences. Center for Biology and Society. Embryo Project Encyclopedia., 2013-07-10)
    Johann Friedrich Meckel and Antoine Etienne Reynaud Augustin Serres developed in the early 1800s the basic principles of what later became called the Meckel-Serres Law. Meckel and Serres both argued that fetal deformities ...
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    AuthorMacCord, Kate (5)Barnes, M. Elizabeth (2)Navis, Adam R. (2)Peirson, B. R. Erick (2)Wolter, Justin M. (2)Caniglia, Guido (1)Guerrero, Anna (1)Haskett, Dorothy R. (1)Madison, Paige (1)O'Connell, Lindsey (1)... View MoreSubject
    Concept (19)
    Embryology (19)
    Embryos (12)Theories (12)Embryological development (11)Processes (10)cell differentiation (8)Developmental biology (7)Baer, Karl Ernst von, 1792-1876 (6)Anatomy (5)... View MoreDate Issued2012 (7)2013 (7)2014 (2)2015 (2)Has File(s)Yes (19)
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