A sudden spontaneous change in structure and action of a gene is called

Variation

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Allelomorph

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Linkage

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Mutation

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Solution

The correct option is B Mutation
Mutations are changes in the genetic sequence, and they are a main cause of diversity among organisms. These changes occur at many different levels, and they can have widely differing consequences.
So, the correct answer is 'Mutation'.

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Similar questions

________ is the sudden inheritable change in one or more genes.

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