Question

3. Explain a frameshift mutation

Answer 1

Answer:

Frameshifts are caused by the addition or deletion of a nucleotide in the DNA sequence. It does not occur if there are three deletions or additions simultaneously (because codons are 3 nucleotides long). A frameshift mutation will cause the reading of the codons after the mutation to code for different amino acids. It also alters where the "stop" codons are located.