Definition of biogenetic law in English:

biogenetic law

Syllabification: bi·o·ge·net·ic law
Pronunciation: /ˌbīōjəˌnedik ˈlô


The theory that evolutionary stages are repeated in the growth of a young animal. Also called recapitulation theory.
More example sentences
  • Wells and Behe both claim that the existence of a conserved stage midway through development shows, also, that Haeckel's biogenetic law, ‘ontogeny recapitulates phylogeny,’ is false.
  • Recall that the central theme of monism is the so-called biogenetic law stating that ontogeny recapitulates phylogeny.
  • Haeckel's biogenetic law was never part of Darwin's theory and was challenged even in his own lifetime.

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