Multiple choice

The mutation due to the insertion or deletion of nucleotides is known as

  1. frameshift mutation

  2. neutral mutation

  3. silent mutation

  4. conditional mutation
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A Correct answer
Explanation

Frameshift mutation is a mutation caused by insertion or deletion of a number of nucleotides that is not evenly divisible by three from a DNA sequence. Due to the triplet nature of gene expression by codons, the insertion or deletion can disrupt the reading frame, or the grouping of the codons, resulting in a completely different translation from the original. The earlier in the sequence the deletion or insertion occurs, the more altered the protein produced is.

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