Nucleic Acids - Polynucleotides

If the carbon atoms in positions three and five are esterified with phosphates, we can link nucleotides together to form polynucleotides. Shown below is a short segment of a (deoxy) polynucleotide with the bases thymine, adenine, and guanine.

We can describe the structure of polynucleotides in much the same way we described the structure of proteins.

All of these aspects of the structure of DNA are illustrated in the next page...

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