One complete twist of DNA contains approximately 10 nucleotides. This is based on the structure of the DNA double helix, where each full turn of the helix spans about 3.4 nanometers and includes 10 base pairs. Each base pair consists of two nucleotides, one from each strand of the DNA.
This arrangement allows the DNA to maintain its stability and integrity while also being flexible enough to undergo processes like replication and transcription. The specific number of nucleotides per twist is crucial for the proper functioning of DNA in storing and transmitting genetic information.