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Why do offspring of a mouse still have tails even after the mouse tail is cut?

Answer and explanation

Correct answer: Because cutting the tail is an acquired change and does not change genes

The governing concept is that an acquired physical change is different from a heritable genetic change. Cutting the mouse’s tail affects its body after birth, but it does not normally change the genes in its sperm or eggs. The offspring therefore receive the usual genetic instructions for tail development and can grow tails. Option A is correct; B reverses the genetic effect, C is false because offspring have chromosomes, and D incorrectly treats development as purely environmental.

Related tags

Acquired CharacterMouse TailInheritanceHeredity And EvolutionWorld Of LivingScienceClass 10 Mcq

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