A) retrogressive evolution
B) mutation
C) atavism
D) metamorphosis
E) Both (b) and (c)
Correct Answer: C
Solution :
The phenomenon of sudden reappearance of any ancestral feature is called atavism. Appearance of ancestral characters in a new born such as large canines, thick body hairs, monstral face, short temporary tails, gill slits, additional pairs of nipples, etc, are the examples of atavism.
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