Deoxyribonucleic acid (DNA) is a molecule composed of two polynucleotide chains that coil around each other to form a double helix carrying genetic instructions for the development, functioning, growth and reproduction of all known organisms and many viruses.
The discovery of the structure of DNA by James Watson and Francis Crick in 1953 is one of the most significant scientific discoveries of the 20th century.
DNA is the blueprint of life and is fundamental to the fields of biology, genetics, medicine, and forensics. It has led to countless advances in our understanding of life and disease.