"nitrogen base." YourDictionary, n.d. Web. 17 January 2019. <https://www.yourdictionary.com/nitrogen-base>.
nitrogen base. (n.d.). Retrieved January 17th, 2019, from https://www.yourdictionary.com/nitrogen-base
One of the nitrogen-containing purines (adenine or guanine) or pyrimidines (cytosine, thymine, or uracil) found in the nucleic acids DNA and RNA. The bases may be attached to a sugar (deoxyribose in DNA, ribose in RNA) to form nucleosides.The addition of a phosphate to a nucleoside results in the formation of a nucleotide, which is the basic constituent of nucleic acids.