How do you describe Nucleic acid as structure?

Nucleic acids, primarily DNA and RNA, are long chains of nucleotides linked by phosphodiester bonds. Each nucleotide consists of a sugar, a phosphate group, and a nitrogenous base. DNA typically forms a double helix structure with complementary base pairing, while RNA usually exists as a single strand that can fold into various shapes. The sequence of bases encodes genetic information essential for biological functions.