As you know, heredity resides in our genes. Our genes are, in turn, composed of complex molecules called DNA. About 10 years ago we learned how to synthesize DNA in the test tube with the use of a certain cellular catalyst or enzyme. […] During the past year, we have been able to synthesize DNA which has the full genetic activity of natural DNA.
1968 March 8, Arthur Kornberg (witness), “Statement of Dr. Arthur Kornberg, Professor and Executive Head of the Department of Biochemistry, Stanford University School of Medicine, Palo Alto, Calif.”, in National Commission on Health Science and Society: Hearings before the Subcommittee on Government Research of the Committee on Government Operations, United States Senate, Ninetieth Congress, Second Session on S.J. Res. 145: A Joint Resolution for the Establishment of the National Commission on Health Science and Society […], Washington, D.C.: U.S. Government Printing Office, page 40