FIGURE 21.16 Structure of Peptide Nucleic Acid Compared to DNA
A) The PNA polypeptide backbone.
B) The sugar and phosphate backbone of normal DNA. B = nucleic acid base. The brackets with "n" indicate a polymer with multiple repeats.
FILL gaps USING DNA POLYMERASE I
DNA made by polymerase
Seal nicks with dna ligase
Sugar + phosphate
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