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Lamarck's theory was fundamentally flawed in that it could not explain the contradictions in observations, for instance a dog with a lobbed tail would not give birth to puppies without tails. The advent of biochemistry and genetics and discovery of DNA demonstrated the mechanisms by which characteristics were passed on, invariably disproving the theory.

Lamarck's theory was fundamentally flawed in that it could not explain the contradictions in observations, for instance a dog with a lobbed tail would not give birth to puppies without tails. The advent of biochemistry and genetics and discovery of DNA demonstrated the mechanisms by which characteristics were passed on, invariably disproving the theory.

Lamarckian evolution was upheld for decades in the 1900s by Trofim Lysenko, head of genetic and biological study within the Soviet Union, until he was discredited along with his pseudoscience in the 1960s.

Lamarckian evolution was upheld for decades in the 1900s by Trofim Lysenko, head of genetic and biological study within the Soviet Union, until he was discredited along with his pseudoscience in the 1960s.

{{DEFAULTSORT: Lamarck, Jean-Baptiste}}

{{DEFAULTSORT: Lamarck, Jean-Baptiste}}

[[Category:Biologists]]

[[Category:Biologists]]