Weismann carried out a five-generation experiment in which 68 white mice's tails were removed and it was reported that no mice were born without a tail or with a shorter tail as a result.
Weismann conducted the experiment by removing the tails of 901 mice and their descendants for five generations.
Weismann reasoned that if acquired features were heritable, the experimental mice would eventually generate offspring without tails.
Nonetheless, as anticipated by Weismann, the amputee mice's progeny grew tails like normal mice.
He used the results of his experiments to construct a complete argument against the idea of acquired qualities being passed down through generations.
As a result, Weismann ruled out the prospect of acquired qualities being passed down if such characteristics were caused by alterations in somatic cells.
Theory of germplasm continuity:
August Weismann, a German scientist, proposed the germplasm continuity theory.
It means that heritable facts or traits are passed down to the next generation through germ cells found in the ovaries and testicles.
Somatic cells are not involved in the process of character transfer from one generation to the next.
The Weismann constriction is what it's called.
As a result, only germ cells are in charge of this process.