The Role a Concept Plays in Science - The Case of Homology

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Brigandt, Ingo
preprint description
The present paper gives a description and philosophical analysis of the conceptual variation in the homology concept. It is argued that different homology are concepts used in evolutionary and comparative biology, in developmental biology, and in molecular biology. The argument is based on a conceptual role semanticsthe identity of concepts supervenes on conceptual roles. The differences between homology concepts are due to the fact that these concepts play different theoretical roles for different biological fields or research approaches. The specific theoretical needs and explanatory interests of different parts of biology lead to different homology concepts.