Its actual name is deoxyribonucleic acid. DNA is a chemical structure that forms chromozones. The characteristics of all living organisms, including humans, are essentially determined by information contained within DNA that they inherit from their parents. The kid gets some of his/her looks and behaviers from his/her parents and ansesters. The molecular structure of DNA is represented by a zipper each tooth is one of four letters (A, C, G, or T), and with opposite teeth forming one of two pairs, either A-T or G-C. The letters A, C, G, and T stand for adenine, cytosine, guanine, and thymine, the basics of DNA.
To find out more about DNA and DNA Fingerprinting go to: http://protist.biology.washington.edu/fingerprint/whatis.html