How is genetic information stored in the DNA molecule?

Genetic information is stored in the DNA molecule through a code made up of four chemical bases: adenine (A), thymine (T), cytosine (C), and guanine (G). These bases pair up in a specific way (A with T, and C with G) to form the rungs of the DNA ladder-like structure. The sequence of these base pairs along the DNA molecule determines the genetic instructions for building and functioning of an organism.