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.
These restriction enzymes are able to scan along a length of DNA looking for a particular sequence of bases that they recognize. This recognition site or sequence is generally from 4 to 6 base pairs in length. Once it is located, the enzyme will attach to the DNA molecule and cut each strand of the double helix.The restriction enzyme will continue to do this along the full length of the DNA molecule which will then break into fragments.hese restriction enzymes are able to scan along a length of DNA looking for a particular sequence of bases that they recognize. This recognition site or sequence is generally from 4 to 6 base pairs in length. Once it is located, the enzyme will attach to the DNA molecule and cut each strand of the double helix.