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Introduction during embryonic development of characters or structure not present in the earlier evolutionary history of the strain or species (as addition of the placenta in mammalian evolution)
Answer for the clue "Introduction during embryonic development of characters or structure not present in the earlier evolutionary history of the strain or species (as addition of the placenta in mammalian evolution) ", 11 letters:
cenogenesis
Word definitions for cenogenesis in dictionaries
Wiktionary
Word definitions in Wiktionary
n. (alternative spelling of caenogenesis English)
The Collaborative International Dictionary
Word definitions in The Collaborative International Dictionary
Kenogenesis \Ken`o*gen"e*sis\, n. [Gr. ? new + E. genesis.] (Biol.) Modified evolution, in which nonprimitive characters make their appearance in consequence of a secondary adaptation of the embryo to the peculiar conditions of its environment; -- distinguished ...
WordNet
Word definitions in WordNet
n. introduction during embryonic development of characters or structure not present in the earlier evolutionary history of the strain or species (as addition of the placenta in mammalian evolution) [syn: kenogenesis , caenogenesis , cainogenesis , kainogenesis ...