Problem: The nucleus a. is the only place in a eukaryotic cell that contains DNA. b. is found in eukaryotic and prokaryotic cells. c. is contained within the nucleolus in eukaryotes. d. is found in eukaryotic cells whereas the nucleolus is found in prokaryotic cells. e. has large pores that allow passage of, at a minimum, RNA between the nucleoplasm and cytoplasm.