👉 Nuclei, or nucleic acids, are a type of genetic material that is found in cells and viruses. There are several types of nucleotides, including adenine (A), thymine (T), cytosine (C), guanine (G), and uracil (U). These nucleotides are part of the DNA structure of the cell, which helps it to replicate and function properly. Nuclei are also involved in many cellular processes, such as transcription