Official websites use .gov A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Periodical. Arai, Ken-Ichi, Naoko Arai, Joseph Shlomai, and Arthur Kornberg. "Replication of Duplex DNA of Phage [Phi] X174 Reconstituted with Purified Enzymes." Proceedings of the National Academy of Sciences of the United States of America 77, 6 (June 1980): 3322-3326. Article. 5 Images.. Proceedings of the National Academy of Sciences of the United States of America