The part of the nucleotide that stores the genetic information is the nitrogen base.
Explanation: Nucleotides are the building blocks of DNA and RNA. Each nucleotide consists of three components: a nitrogen base, a sugar (deoxyribose in DNA and ribose in RNA), and a phosphate group. The nitrogen base is responsible for storing the genetic information. There are four types of nitrogen bases in DNA: adenine (A), thymine (T), cytosine (C), and guanine (G). In RNA, thymine is replaced by uracil (U). The sequence of these nitrogen bases along the DNA or RNA strand encodes the genetic instructions used in the development and functioning of all known living organisms.