Appearance of ancestral characters in the new | vedclass

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(C) Atavism is the reappearance of ancestral traits in an organism that have been lost or suppressed during the course of evolution.Examples include t

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Atavism

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(C) Atavism is the reappearance of ancestral traits in an organism that have been lost or suppressed during the course of evolution.Examples include the presence of a tail in human infants,the development of gill slits,or the presence of multiple mammae (polymastia).These features provide evidence for evolutionary history by showing that the genetic information for these ancestral traits is still present in the genome,even if it is not typically expressed.

Appearance of ancestral characters in the newborns,such as tail,monstral face,gill slits,multiple mammae,etc.,are known as:

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