Question

Weismann cut the tail of mice, generation after generation but tail neither disappeared nor shortened showing that

• A. Mutation theory is wrong
• B. Tail is an essential organ
• C. Lamarckism was wrong in inheritance of acquired Characters
• D. Darwin was correct

Answer 1

The correct option is C Lamarckism was wrong in inheritance of acquired Characters

Introduction to Lamarckism
According to Lamarck’s theory of inheritance of acquired characters or Lamarckism, traits acquired by an organism in its lifetime is inheritable.

Criticism of Lamarckism
Weismann criticised the theory of inheritance of acquired characters that was given by Lamarck, through his theory of continuity of germplasm. According to the theory of germplasm, characters that influence the germ cells are only inherited. He conducted experiments on mice in which he cut off the tails of mice and were allowed to breed for several generations, but a mouse without tail was never born.

Introduction to Darwinism
Darwin’s theory of evolution or Darwinism gives natural selection as a reason for evolution.

Hugo De Vries
Based on his work on evening primerose, Huge de Vries had proposed mutation as the reason for evolution.

Final answer
(d) Lamarckism was wrong in inheritance of acquired
Characters