Concept explainers
To compare: The overall backbone length for a PNA and a DNA molecule.
Concept introduction: PNAs also known as peptide
To explain: The reason why the PNA and DNA can form base-paired duplexes.
Concept introduction: PNAs also known as peptide nucleic acids are the molecules that mimic DNA in structure, but contain pseudo-peptide backbone. These molecules are artificially created for forming stable structural duplex with DNA and RNA molecules. Structural adaptability, specificity, and affinity of PNA molecules made their existence as a powerful molecular tool for binding with nucleic acids.
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