DNA, or deoxyribonucleic acid, is a molecule that contains the genetic instructions for the development, functioning, growth, and reproduction of all living organisms. It is a long, double-stranded helical structure located in the cell nucleus and is composed of nucleotides. These nucleotides contain a sugar-phosphate backbone and nitrogenous bases (adenine, thymine, cytosine, and guanine) that form complementary base pairs. The sequence of these base pairs determines the genetic code that is responsible for the diversity and characteristics of each organism.
DNA, neboli deoxyribonukleová kyselina, je molekula složená ze dvou řetězců, které se vinou kolem sebe a tvoří dvojitou šroubovici. Je nositelem genetické informace a nachází se uvnitř buněk všech živých organismů. Obsahuje zakódované instrukce pro vývoj a fungování každého živého tvora.