Here's a breakdown:
* Cell: The basic unit of life.
* Nucleus: The control center of the cell, containing the genetic material.
* Chromosomes: Tightly packed structures of DNA.
* DNA: A long molecule that contains the genetic instructions for an organism.
* Genes: Segments of DNA that code for specific traits or functions.
Think of it like this: Your body is a building, the nucleus is a room in the building, chromosomes are the shelves in the room, DNA is the books on the shelves, and genes are the chapters in the books.