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.
Dynamics in vitro. The density of bacteria (a), and the frequency of plasmid bearing cells (b) in liquid culture after 24 h factorial antibiotic (AB) and phage (P) treatments. Error bars are ±1 s.e.; ** denotes p < 0.001 difference.