Nucleic acids are polymeric macromolecules. Polymeric means to be a large molecule composed of many repeated sub units, known as monomers. The DNA and RNA in the nucleic acids are monomers called nucleotides. Each nucleotides has 5 carbon-sugars, a phosphate group and a nitrogen base. When the sugar is deoxyribose, the polymer is DNA. When the sugar is ribose, the sugar is RNA. The main function of nucleic acids is to store and transmit genetic material.
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