Nucleic Acid is defined as a large molecule composed of nucleotide subunits. Nucleic Acids are the building blocks of all organisms. DNA, RNA, mRNA, and tRNA are the most well-known nucleic acids. All nucleic acids work together to help cells replicate and build proteins. Each nucleic acid is made up of a chain of base pairs that can stretch from only a few to millions. In DNA, the chains combine to form super long chains called a double helix.
Another name for the nucleotides is monomers. The monomers are Uracil, Cytosine, Thymine, Adenine, and Guanine. Each nucleotide contains three parts: a five carbon sugar, a base that is a nitrogen atom, and an ion of phosphoric acid.