Which Statement Is Not True Regarding Peptide Nucleic Acids

Multiple Choice

Which statement is not true regarding peptide nucleic acids?

A) Peptide nucleic acids are not degraded by nucleases or proteases.
B) Peptide nucleic acids consist of a polypeptide backbone to which nucleic acid bases are attached as side chains.
C) Peptide nucleic acids are able to bind to complementary strands of DNA or RNA.
D) Peptide nucleic acid penetrates cells easily,and therefore has importance in medicine.