Prokaryotic cells are characterized by the lack of a nucleus and other membrane-bound organelles.

Here's a breakdown:

* Prokaryotes: Simple, single-celled organisms (like bacteria and archaea) that lack a true nucleus. Their genetic material (DNA) is located in a region called the nucleoid, which is not enclosed by a membrane.

* Eukaryotes: More complex cells (like plants, animals, fungi) that have a true nucleus containing their DNA, as well as other membrane-bound organelles.

So, a cell with no nucleus is indeed a prokaryotic cell.