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Experiments have been done to verify inheritance of acquired characteristics, and results unanimously show that it is false.

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Q: Why do you now know that inheritance of acquired characteristics is not valid?
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What aspect of Jean Baptiste Lamarcks theories concerning the inheritance of acquired traits has been proved false?

Lamarck believed that changes acquired during an animal's life could be inherited by their offspring. We now know that inheritance does not work in this way. For example, if you are a body builder, and develop big muscles, your children will not inherit large muscles. Inherirtance works through genes, which are inherited through the egg and sperm from the parents.


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