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.
Modular vector components. Identical overhang sequences are used for modules of analogous function (e.g. drug resistance genes), which make the modules readily interchangeable. (A) Components for combinatorial assembly of six modular vectors. (B) Components for expression cloning of two different genes into each of six modular vectors.
