How does DNA store information?

DNA stores information using a sequence of four nitrogenous bases: adenine (A), thymine (T), cytosine (C), and guanine (G). These bases form a genetic code arranged in specific sequences along the double-helix structure. Each set of three bases, called a codon, codes for an amino acid, which builds proteins. The order of bases determines genetic traits. DNA is packed into chromosomes, and cells use it to direct growth, function, and reproduction.