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The Causal Analysis of Develop
The Analysis of Organiser
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action activity actually alternatives amphibian animal arista aristopedia Bautzmann biological blastoderm blastopore Brachet ca+ substance causal cause cells chemical chick competence concept consider cytolysis cytoplasm definite determination developmental track differentiation diffusion discussion dorsal dose-effect curve Drosophila ectoderm elongation embryo embryological endoderm epidermis Epigenetic Landscape evidence evocator substance evocatory example fact fibres field formation gastrula gene effects gene reactions genes genetic control genotype glycogen graft grey crescent growth rate Hensen's node Holtfreter host hypothesis implanted individuation instance interaction invagination investigation involved isolated later lens localised material mesoderm metabolism methylene blue mosaic mutant nature Needham neural plate neural tissue neural tube normal allelomorph normal evocator notochord occurs organ organiser region pattern phenomena pigment pleiotropy possible posterior presumptive primitive streak probably processes produced properties protein relation sequence shape shown similar specific Spemann stage stimulus structures suggested time-effect curves veins ventral Waddington whole wing