* Bacteria: Bacteria are prokaryotes, meaning they lack a true nucleus. Their DNA is located in a region called the nucleoid, which is not enclosed by a membrane.
* Viruses: Viruses are not considered living organisms and do not have a nucleus or any other cellular structures. Their genetic material can be DNA or RNA, and it is enclosed within a protein coat called a capsid.
* Eukaryotes: Eukaryotes are organisms whose cells contain a nucleus. This means their DNA is enclosed within a membrane-bound organelle called the nucleus. Examples of eukaryotes include animals, plants, fungi, and protists.
Therefore, the answer to your question is eukaryotes.
Let me know if you have any other questions!