There are several strategies employed to protect DNA from damage. The spacing between introns is one such structural technique.
Numerous proteins keep a close watch on genomic stability. The class of enzymes known as helicases is exemplary. Helicases are vital to all organisms. Their main role is unpackaging nucleic strands for employment. They also help ensure integrity for their objects of attention.
Not all genomic threats come from without. Some lurk within.