Here's a breakdown:
* Eukaryotes: Their DNA is organized into chromosomes, which are found within the nucleus. This is the most prominent location for the genome.
* Prokaryotes: These cells lack a nucleus, so their DNA is located in a region called the nucleoid.
* Mitochondria and Chloroplasts: These organelles within eukaryotic cells have their own smaller genomes called mitochondrial DNA (mtDNA) and chloroplast DNA (cpDNA), respectively.
So, while the majority of an organism's genome is found in the nucleus, some parts of the genome exist in other locations within the cell.