Frameshift mutation occurs when

Base is added

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Base is deleted

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Base is added or deleted

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None of the above

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Solution

The correct option is C Base is added or deleted
Frameshift mutation is a mutation caused by the addition or deletion of a base pair or base pairs in the DNA of a gene resulting in the translation of the genetic code in an unnatural reading frame from the position of the mutation to the end of the gene.
Thus, the correct answer is option C.

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Similar questions

Deletion mutation can also cause a frameshift mutation.

Examples of disorders caused by frameshift mutation.

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