An official website of the United States government
Here's how you know
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.
DGGE profile of nirK marker in high-Pb experiment. Bottom part, gel image; top part, digitized density profile of the gel. Spikes at extreme left and right of the graph with no corresponding bands are reference marks for gel alignment