Eukaryotes have DNA present inside the cell nucleus and DNA present outside of the cell nucleus.
The endosymbiotic theory proposes that progenitors of present day
Select Optionchloroplasts and mitochondriaendoplasmic reticulum and ribosomesmitochondria and nucleiribosomes and lysosomes
organelles were originally free-living bacteria, but somewhere around 1 to 1.5 billion years ago in evolutionary history became internal inhabitants (i.e. endosymbionts) of eukaryotic cells, and eventually became permanent organelles.