EvolutionHard

Question

Weismann cut off tails of mice generation after generation but tails neither disappared nor shortened showing that

Options

A.Darwin was correct
B.tail is an essential organ
C.mutation theory is wrong
D.Lamarckism was wrong in inheritance of acquired characters

Solution

Lamarckism theory of inheritance of acquired characters was discarded by Weismann, while experimenting on mice. He cut the rails of mice for 80 generations but no single mouse was born without tail. Weismann formulated his famous ′Theory of continuity of germplasm′, according to which only those characters, whatever br their origin and nature, that could affect germplasm are herotable and others are not.

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