Where is DNA primarily located within a cell?

DNA is primarily located in the nucleus of eukaryotic cells, which is where it is organized into structures called chromosomes. Within the nucleus, DNA is protected and can be efficiently regulated during processes such as replication and transcription. The nuclear environment is conducive to these activities because it allows for the segregation of genetic material from the cytoplasmic activities, which include protein synthesis and metabolism.

In addition to the nucleus, a small amount of DNA can also be found in mitochondria, which is involved in energy production and has its own circular DNA that is distinct from nuclear DNA. However, the predominant and primary location of DNA in a cell is indeed the nucleus, making it the best answer to this question.