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.
FACS dot plots (106 events) showing fluorescent profiles of three R26CY MEF cell lines (A-C) and two ES cell lines (D, E). Arrows in panel A indicate "dim" and "bright" events in MEF plots. Circles in panels D and E indicate areas where monochromatic variants would be expected to be located.
