What are the similarities between prokaryote cells and the organelles mitochondria and chloroplasts?
There is a theory. This theory states that mitochondria and chloroplasts were once a free living bacterias(prokaryote) long time ago. People thought this because mitochondria and chloroplasts are not like other organelles of the cell. They divide independently during cell division, they both have their own DNA, and even those DNAs (known as mtDNA) replicates.