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.
Variation of branch-specific dN/dS values among the five branches (marked a to e) that connect human and mouse in the mammalian phylogeny. The branch lengths are not drawn to scale. The dN/dS values for branches d and e have been adjusted to correct for the intrinsically low dN/dS in rodents (see Methods).
