Who disproved Lamarck's Theory of acquired characters? How ?

Explanation

Lamarck.s "Theory of Acquired characters" was disproved by August Weisman who conducted experiments on mice for twenty generations by cutting their tails and breeding them. All mice borm were with tail. Weismann proved that change in the somatoplasm will not be transferred to the next generation but changes in the germplasm will be inherited