Nucleotides are the monomers that make up the polymer of DNA. What can be known about the process of building a DNA molecule?

DNA is built by joining nucleotide monomers into a polymer. The atoms in DNA are connected by covalent bonds, which form when atoms share electrons; the sugar-phosphate backbone includes covalent bonds between carbon-containing groups. Therefore, building DNA involves building carbon-carbon covalent bonds by sharing electrons. Ionic bonds involve electron transfer rather than the sharing used to form covalent bonds.

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