Correct question:
The change in a gene due to the insertion or deletion of one or more nitrogen bases, which causes subsequent triplets to be rearranged and the codons to be read incorrectly during translation
Answer:
Frameshift Mutation
Explanation:
The genetic information of the gene is read in the form of triplet codons of mRNA during the process of protein synthesis. When one or more bases are added or removed from a gene, all the triplet codons present downstream of the mutation are changed. This is called a frameshift mutation. A frameshift mutation changes all the triplets ahead of the mutation site. This results in an incorrect reading of the genetic information and synthesis of a faulty/less functional or non-functional protein during the process of translation.