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25 January, 11:45

A change in a gene due to damage or incorrect copying is called

a evolution.

c. segregation.

b. meiosis.

d. a mutation.

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  1. 25 January, 15:37
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    Answer: Option D). a mutation.

    Explanation:

    Mutation is the change in the genetic composition of the cell. This change in a gene can be due to

    - spontaneous change in nitrogenous base

    - error during replication i. e incorrect copying of DNA template strand

    - damage to DNA by ionizing radiation such as X-rays

    - damage to DNA by heavy metals such as cadmium, lead etc

    Thus, mutation is the answer.
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