Final answer:
Mitochondria and chloroplasts contain DNA that is different from the DNA found in the cell nucleus.
Step-by-step explanation:
The DNA in mitochondria and chloroplasts is indeed unlike the DNA found in the nucleus of eukaryotic cells.
Mitochondria and chloroplasts contain their own DNA, known as mitochondrial DNA (mtDNA) and chloroplast DNA, respectively. In contrast, nuclear DNA is found in the nucleus of eukaryotic cells and is organized into linear chromosomes.
The DNA in mitochondria and chloroplasts is circular and resembles the DNA of bacteria, which supports the endosymbiotic theory that suggests these organelles evolved from engulfed bacteria.