Question

The theory of inheritance of acquired character for evolution was proposed by

Answer 1

Answer :

According to the theory of inheritance of acquired characters proposed by Lamarck was true the world will be like-

i. All the acquired characters of the parental generation will be carried forward to the next progeny. But it is not actually happening. If it had, then all the swimmer’s sons will become swimmers or doctor’s sons will become doctors, which is not the case.

ii. Pilots, Lawyer, Linguists, Singers, Musicians etc., all will pass on their acquired traits to their progeny and their progeny will also become the same just like their parents.

iii. The process of continuous evolution would have been disturbed.

Answer 2

The theory of inheritance of acquired character for evolution was proposed by Jean-Baptiste de Monet Lamarck.

• The theory of inheritance of acquired character can be defined as 'The changes in structure or function of any organ acquired during the life-time of an individual in response to changes in the surrounding environment are inherited by its offspring and keep on adding up over a period of time.'

• Example of Lamarckism - Long neck of giraffe, Aquatic Birds with Webbed Toes, Extinction of Limbs in Snakes.