Here's a breakdown:

* DNA: A complex molecule that contains the instructions for building and maintaining an organism. It's like a blueprint for life.

* Genes: Segments of DNA that carry the code for a specific protein or function.

* Genetic code: The set of rules that translates the sequence of nucleotides in DNA into a sequence of amino acids, which are the building blocks of proteins.

Where is DNA found?

* Eukaryotic cells (like human cells): DNA is primarily found in the nucleus, a membrane-bound organelle.

* Prokaryotic cells (like bacteria): DNA is located in a region called the nucleoid, which isn't enclosed by a membrane.

So, while the genetic code itself is a set of rules, it's physically stored within the DNA molecule, which is located in the nucleus of eukaryotic cells or the nucleoid of prokaryotic cells.