In all living things are chemical compounds that are responsible for storing data, ie to contain information. One of these compounds is deoxyribonucleic acid, known as DNA, responsible for controlling cell development and transmit information from one generation to another. DNA is a macromolecule found in the cell nucleus, the structure consists of a double chain held together by pairs of nitrogen bases (cytosine, guanine, thymine and adenine). DNA contains the information to produce proteins in the cell. When double-strand divides, forming two new chains.
In the V and IV a.C. there was talk of hereditary traits, but only in the eighteenth century began to scientifically study through genetics.
In 1953, Francis Crick and James Watson submitted their DNA research.
Ribonucleic acid, known as RNA, resides in the cytoplasm and the nucleoli.