Answer:
The correct answer is: missense mutation.
Step-by-step explanation:
Missense mutations are the ones that occur when the change in the nucleotide sequence of the DNA leads to a different amino acid in a protein because the codon wasn't what it was supposed to be.
The change in one amino acid can make a big difference in a protein, making it lose its function or making it function abnormally -most probably in a way that can be harmful to the cell and the body-.