Nitrogenous bases: ringed chemical structures that are part of nucleotidesplugin-autotooltip__default plugin-autotooltip_bigNucleotide: molecules that are polymerized to form nucleic acids (DNA or RNA). Includes dNTPs and NTPs.. They include adenine (A), guanine (G), thymine (T), and cytosine (C) in DNAplugin-autotooltip__default plugin-autotooltip_bigDNA: deoxyribonucleic acid. The genetic material for nearly all life on Earth., and uracil (U) that substitutes for thymine in RNAplugin-autotooltip__default plugin-autotooltip_bigRNA sequencing (RNAseq): an experimental technique that sequences all the RNAs in a sample. It is based off of converting RNAs into cDNAs with reverse transcriptase, followed by Illumina sequencing..