Here's how it works:

* DNA is made of four bases: Adenine (A), Thymine (T), Guanine (G), and Cytosine (C).

* Genes are segments of DNA that code for proteins.

* The order of these bases within a gene determines the order of codons. A codon is a sequence of three bases that codes for a specific amino acid.

* There are 20 different amino acids that make up proteins.

* The genetic code is a set of rules that translates codons into amino acids.

* The sequence of amino acids in a protein determines its structure and function.

So, in short, the order of bases in a gene determines the specific protein that is made. This is crucial for all biological processes, as proteins are responsible for everything from building and repairing tissues to transporting nutrients and fighting off infections.