The flow of information is unidirectional: information is transferred from nucleotide sequences into the amino acid sequence of proteins, but it never transfers from protein back into the sequence of DNA—a phenomenon Francis Crick called the central dogma of molecular biology.
Tok informacija je jednosmjeran: informacije se prenose od nukleotidnoj sekvenci u aminokiselinsku sekvencu u proteinima, ali nikada se ne prenosi od proteina nazad u sekvencu DNK - fenomen koji je Francis Crick nazvao centralnom dogmom molekularne biologije.