LIFE SCIENCE

Detailed explanation-1: -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-2: -It is correct that evolution occurs over generations of reproduction, but Lamarck was incorrect in thinking that traits developed over a lifetime will be passed along to offspring. The correct mechanism of inheritance is that genes are passed along from generation to generation.

Detailed explanation-3: -Correct answer: While Lamarck had many revolutionary ideas on evolution, his most correct assumption was the importance of environmental changes on evolutionary adaptations. His theories on the inheritance of acquired traits and essentialsm do not fit into our current knowledge of evolution, DNA, and inheritance.

Detailed explanation-4: -Lamarck’s theory was disproven when August Weismann amputated the tails of mice and bred them, producing new generations of mice who had perfectly healthy tails. The discovery of DNA, which was static and did not change over a person’s lifetime, also undermined the validity of Lamarck’s theories.