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CENOGENESIS - 2 reference results
Caenogenesis
Caenogenesis (also variously spelled cainogenesis, cenogenesis, kainogenesis, kenogenesis) is the introduction during embryonic development of characters or structure not present in the earlier evolutionary history of the strain or species, as opposed to palingenesis. Notable examples include the addition of the placenta in mammals.

Caenogenesis constitutes a violation to Ernst Haeckel's biogenetic law and was explained by Haeckel as adaptation to the peculiar conditions of the organism's individual development. Other authorities, such as Wilhelm His, Sr., on the contrary saw embryonic differences as precursors to adult differences.

See also

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cenogenesis
Oct 01, 1996; The Mosby Medical Encyclopedia 10-01-1996 cenogenesis, the development of traits that are absent in earlier forms of a species,...
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palingenesis
Oct 01, 1996; The Mosby Medical Encyclopedia 10-01-1996 palingenesis paleogenesis, 1. the regrowth of a lost part. 2. the hereditary carrying...
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Haeckel, Ernst Heinrich Philip August
Jan 01, 2006; Haeckel, Ernst Heinrich Philip August 1834–1919 German zoologist 1. The nucleus has to take care of the inheritance of the...
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Pages from a Book of Years (part two).(poem)
Mar 22, 1999; Part Two I America First or Lend-Lease. 1941. The Christmas holidays at last and New Year's Eve. How to measure now and then and...
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