Biology
General
Easy

Question

A baby has been born with a small tail. It is the case of exihibiting

  1. Retrogressive evolution  
  2. Mutation  
  3. Atavism  
  4. metamorphosis  

The correct answer is: Atavism


    The phenomenon of sudden reappearance of some ancestral features is called atavism. Appearance of ancestral characters in the new born such as large canines, thick body hairs, monstral face, short temporary tails, gill slits, additional pairs of nipples, etc, are example of atavism.

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