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.
Replication obstacles (represented by the red triangle) transiently stall fork progression. Replication obstacles can be “tolerated” by three distinct pathways to allow resumption of replication fork progression: translesion synthesis (left), template switching or fork reversal (middle), and repriming (right).
