Weismann cut off tails of mice generation after generation but tails neither disappared nor shortene

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Weismann cut off tails of mice generation after generation but tails neither disappared nor shortened showing that

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Lamarckism theory of inheritance of acquired characters was discarded by Weismann, while experimenting on mice. He cut the rails of mice for 80 generations but no single mouse was born without tail. Weismann formulated his famous &#8242;Theory of continuity of germplasm&#8242;, according to which only those characters, whatever br their origin and nature, that could affect germplasm are herotable and others are not.

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