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.
Statistics of the average optical density of the skin tissue of Gansu Alpine Merino at various ages as per immunohistochemical analysis. (A) Average optical density of Dlx3 at various ages; (B) average optical density of Lef1 at various ages. The data are expressed as the mean ± S.E. Different letters indicate significant differences between different ages (p < 0.05).
