Q24 / 349 · NTA Abhyas (NEET) 2020 · Zoology · Evolution

A baby has been born with a small tail. It is a case exhibiting.

  • A
    Retrogresive evolution
  • B
    Mutation
  • Correct answer
    C
    Reversion
  • D
    Metamorphosis

Solution

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".

Hence, the correct answer is option: 'C'.

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