Some mutations, or changes in the sequence of DNA, do not have any effect on the characteristics of the organism. Why is this? The protein built from this mutated sequence is deactivated by the cell.

The cell recognizes mutations and ignores them when expressing the gene.

The mutated sequence still codes for the same amino acid.

The immune system repairs the mutated sequence during development.

The mutated sequence still codes for the same amino acid.

Explanation:

Mutations that have no effect on an organism's characteristics have mutated sequences that still code for the same amino acid.

Because it codes for the same amino acid that it was intended to, the proteins made from it will remain the same.

This means that there will be no effect or change on the organism's characteristics, because the protein will be the exact same.

So, the correct answer is that The mutated sequence still codes for the same amino acid.

The mutated sequence still codes for the same amino acid.

Explanation:

This type of mutation is called a silent mutation. Despite a nucleotide in the codon being changed, the original codon and the mutated codon still code for the same amino acid. This results in no observable effect on the characteristics of the organism.

Hope that helps.