peptide nucleic acid

Noun

 * 1)  A synthetic organic polymer similar to DNA or RNA; the sugar backbone of nucleic acids is replaced by N-(2-aminoethyl)-glycine linked through peptide bonds - considered a possible precursor to RNA

Usage notes
PNA is not an acid

Related terms

 * (RNA)
 * (DNA)
 * (GNA)
 * (TNA)
 * (TNA)