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.
(A) A typical dsDNA stretching curve showing the entropic stretching region (gray), the first elastic region (light blue), the overstretching transition (green) and the second elastic region (red). (B) Illustration of the free energy of the DNA melting transition.
