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Question

A sudden or spontaneous change in the structure and action of a particular gene is called:


A

Linkage

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B

Mutation

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C

Variation

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D

Allelomorphic

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Solution

The correct option is B

Mutation


The correct option is B:

Explanation of the correct option:

A sudden change in the structure and action of a particular gene is called a mutation.

Explanation of the incorrect options:

Option A:

The tendency of the genes on the same chromosome to stay together in the hereditary transmission is known as linkage.

Option C:

Variation is any difference between cells, individual organisms, or groups of organisms.

Option D:

Allelomorph is an alternative form of a gene that is present at the same locus on a specific chromosome and that control the same character.

Final answer: A sudden change in the structure and action of a particular gene is called a mutation.


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