Type II restriction enzymes cut DNA at specific base sequences that are palindromic. Some restriction enzymes make staggered cuts, producing DNA fragments with cohesive ends; others cut both strands straight across, producing blunt-ended fragments. There are fewer long recognition sequences in DNA than short sequences.
-Where do restriction enzymes come from?

Question

Quizplus · Accepted Answer

The Answer is Restriction enzymes exist naturally in bacteria, which use them to prevent the entry of viral DNA.

Type II Restriction Enzymes Cut DNA at Specific Base Sequences