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.
In A and B, each data point represents the average of two replicates; in C, each data point is of three replicates with deviation bars shown.
