Which type of cell contains a nucleus?

• A. Prokaryotic cells
• B. All cells
• C. Cells lacking organelles
• D. Eukaryotic cells

Answer: (D)

Having a nucleus is about where a cell keeps its genetic material. A nucleus is a membrane-bound compartment that holds DNA and helps regulate gene expression. Cells that have a nucleus are called eukaryotic cells, like those in plants, animals, and fungi. Prokaryotic cells, such as bacteria, do not have a membrane-bound nucleus; their DNA sits in the cytoplasm.

So the statement that describes cells containing a nucleus is the one about eukaryotic cells. The other options aren’t correct because prokaryotic cells lack a nucleus, and not all cells have a nucleus, while “cells lacking organelles” isn’t a reliable way to define nucleus presence since prokaryotes also lack many organelles but still don’t have a nucleus.