Explanation:

- Nucleus: Organelles containing genetic material found in eukaryotes, not in prokaryotes.

- Chromosomes: Structures of DNA present in both prokaryotes and eukaryotes, albeit differently organized.

- Mesosome: Infoldings of the plasma membrane in prokaryotes, sometimes considered artifacts of cell preparation but classically taught as unique to prokaryotes.

- Nuclear membrane: Also known as the nuclear envelope, surrounds the nucleus in eukaryotes and is absent in prokaryotes.