Philosophy of Science 73 (5):918-929 (2006)

Abstract
Although the construction of neo-Darwinism grew out of Thomas Hunt Morgan's melding of Darwinism and Mendelism, his evidence did not soley support a model of gradual change. To the contrary, he was confronted with observations that could have led him to a more "evo-devo" understanding of the emergence of novel features. Indeed, since Morgan was an embryologist before he became a fruit-fly geneticist, one would have predicted that the combination of these two lines of research would have resulted in early formulations of concepts relevant to evolutionary developmental biology. It is thus of interest to review Morgan's thought processes and arguments for at first rejecting both Darwinism and Mendelism, and then for later dismissing data that would have yielded a model of rapid morphological change in favor of a model of change based on the accumulation of minor mutations and their morphological consequences.
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DOI 10.1086/518779
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References found in this work BETA

Problems of Genetics.William Bateson - 1982 - Philosophy of Science 49 (1):147-149.
Embryology and Evolution.G. R. de Beer - 1930 - Journal of Philosophical Studies 5 (19):482-484.

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Thomas Hunt Morgan and the invisible gene: the right tool for the job.Giulia Frezza & Mauro Capocci - 2018 - History and Philosophy of the Life Sciences 40 (2):31.

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