Question

define atavism ?
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Answer 1

Answer:

• In biology, an atavism is a modification of a biological structure whereby an ancestral genetic trait reappears after having been lost through evolutionary change in previous generations. ... The word atavism is derived from the Latin atavus—a great-great-great-grandfather or, more generally, an ancestor.

Answer 2

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• Atavism means a tendency to revert to something ancient or ancestral

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