Question

During dna replication, two extra guanine bases are added to the dna. what type of mutation is this?

Answer 1

C. frameshift mutation

Answer 2

Answer:

(c). frameshift mutation.

Explanation:

Mutations are permanent changes in the DNA due to changes in nucleotide sequences. Mutations that cause addition of extra nucleotides in a nucleotide sequences are known as frameshift mutations.

This is because they lead to change in open-reading frames or translational reading frames and change the entire amino acid sequence coded by rest of the gene.

Thus, the correct answer is option (c).