LIFE SCIENCE

Detailed explanation-1: -Lamarck. s .. Theory of Acquired characters.. was disproved by August Weismann who conducted experiments on mice for twenty generations by cutting their tails and breeding them.

Detailed explanation-2: -Lamarckism is considered as a wrong concept because the characters acquired by an organism during its lifetime due to use or disuse do not affect the genetic makeup of the organism. They are simply phenotypic changes.

Detailed explanation-3: -The doctrine, proposed by the French naturalist Jean-Baptiste Lamarck in 1809, influenced evolutionary thought through most of the 19th century. Lamarckism was discredited by most geneticists after the 1930s, but certain of its ideas continued to be held in the Soviet Union into the mid-20th century.