Question

The theory of inheritance of acquired characters was proposed by
A. Darwin
B. Lamarck
C.Weisman
D.De Vries

Answer 1

Hint: The theory of inheritance acquired characteristics is also known as Lamarckism inheritance. He proposed that the characteristics which are acquired by an organism in his lifetime can be passed on the new offsprings.

Complete answer: The theory of inheritance of acquired characters was first proposed by a French biologist Jean Baptiste Lamarck.
In his theory stated that the organisms have some internal forces within them due to which the organism shows modification such as an increase in the size of the organ or the entire body.
These changes can be seen as a direct response to the environmental changes, as the changing environment causes the rise of new needs which eventually change the habits of the organism.
He stated that if an organ that is constantly used will be developed and where there is disuse of the organ it will degenerate.
This theory is also known as Lamarckism or Lamarckism inheritance.

Hence, the correct option is ‘B’

Note: The Lamarckism inheritance theory was simple as it showed how the changes in organisms could come. This theory was the first theory of evolution.