The crucial experiment of Wilhelm Johannsen

@article{RollHansen1989TheCE,
  title={The crucial experiment of Wilhelm Johannsen},
  author={N. Roll-Hansen},
  journal={Biology and Philosophy},
  year={1989},
  volume={4},
  pages={303-329}
}
I call an experiment “crucial” when it makes possible a decisive choice between conflicting hypotheses. Joharmsen's selection for size and weight within pure lines of beans played a central role in the controversy over continuity or discontinuity in hereditary change, often known as the Biometrician-Mendelian controversy. The “crucial” effect of this experiment was not an instantaneous event, but an extended process of repeating similar experiments and discussing possible objections. It took… Expand
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