Where is cytoplasmic DNA found?

Cytoplasmic DNA is primarily found in mitochondria and chloroplasts. This type of DNA is distinct from the nuclear DNA, which is located in the nucleus of the cell. Mitochondria and chloroplasts contain their own DNA because they are thought to have originated from free-living prokaryotes that were engulfed by ancestral eukaryotic cells. This endosymbiotic theory explains why these organelles have their own circular DNA, which is similar to that of bacteria, allowing them to reproduce independently of the cell's nuclear DNA.

In contrast, the nucleus contains the majority of a cell's genetic material, and the endoplasmic reticulum and Golgi apparatus are involved in protein synthesis and modification, but they do not contain DNA. Therefore, the presence of DNA specifically in mitochondria and chloroplasts is the reason this answer is accurate.