Inside a cell of a living organism, the information stored in the DNA in the form of genes is first read and translated into an intermediate molecule, RNA, inside of the nucleus. This molecule of RNA, which contains a copy of the DNA sequence, scapes the nucleus and is translated into a chain of aminoacids in the ribosomes. This aminoacids are then folded to form a protein, which is are the funcional molecules carrying out the instructions of the genetic information. This flow of information inside the cell is called the Central Dogma of Molecular Biology, and it was first stated by Francis Crick.