Which of the Following CORRECTLY Describes Nonsense Mutations

Multiple Choice

Which of the following CORRECTLY describes nonsense mutations?

A) They cause a nonfunctional amino acid to replace a functional amino acid.
B) They change the nucleotide sequence of a gene but do not change the sequence of the resulting protein.
C) They result in the insertion or deletion of a small number of nucleotides to the DNA.
D) They convert a codon for a particular amino acid within a gene into a stop codon.
E) They cannot revert or back-mutate to wild-type.