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.
Monograph. Olby, Robert C. "Bacterial Transformation." Chapter 11 in The Path to the Double Helix: The Discovery of DNA. Dover Publications, 1994. Pp. 169-179. Excerpt. Monograph. 11 Images.. ISBN. 0-486-68117-3