Varieties of parity
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- Stegmann, U.E. Biol Philos (2012) 27: 903. doi:10.1007/s10539-012-9331-5
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A central idea of developmental systems theory is ‘parity’ or ‘symmetry’ between genes and non-genetic factors of development. The precise content of this idea remains controversial, with different authors stressing different aspects and little explicit comparisons among the various interpretations. Here I characterise and assess several influential versions of parity.