Arches. Photo by Daniel Chia
HOPES: Huntington's Outreach Project for Education, at Stanford
Feb
08
2011

polymerase slippage

Polymerase slippage sometimes occurs during replication; DNA polymerase III falls off of the DNA template at the repeat region, then reattaches at a more distant site. Polymerase slippage can cause the newly created DNA strand to contain an expanded section of DNA.