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Question: Answered & Verified by Expert
A baby has been born with a small tail. It is a case exhibiting.
BiologyEvolutionNEET
Options:
  • A Retrogresive evolution
  • B Mutation
  • C Reversion
  • D Metamorphosis
Solution:
2960 Upvotes Verified Answer
The correct answer is: Reversion
Atavism or reversion is the sudden reappearance of some ancestral features. Atavisms is observed in humans, as with the infants that are born with the vestigial tails called a "coccygeal process" or "coccygeal projection", or "caudal appendage".

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