Located near the center of the US population, Northwest Arkansas is, quite simply, in the middle of everywhere. There are several Midwestern markets within a half-day's drive, including Kansas City, St. Louis, Dallas-Fort Worth, Little Rock, Tulsa, and Oklahoma City.
Restriction enzyme. A restriction enzyme or restriction endonuclease is an enzyme that cuts DNA at or near specific recognition nucleotide sequences known as restriction sites.
When a restriction enzyme cleaves a restriction site, the reaction creates highly reactive sticky ends on the broken DNA. This is useful to the biotechnologist! By cutting open vector DNA with the same with restriction enzymes used to cleave the target DNA, complementary sticky ends are created.