DNA's role in heredity was confirmed in 1952 when Alfred Hershey and Martha Chase in the Hershey–Chase experiment showed that DNA is the genetic material of the enterobacteria phage T2.
DNA's rolle i arv blev bekræftet i 1952, da Alfred Hershey og Martha Chase i Hershey-Chase-eksperimentet påviste, at DNA er T2 fagens genetiske materiale.