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.
Dendrogram of compositional sequence similarities calculated by comparison of frequencies of tetranucleotides in DNA fragments from fosmids of L. terrestris and A. caliginosa libraries versus fully sequenced bacterial chromosomes (chr) and plasmids.