You will need the following items: 1  Temporary Use Permit Application (completely filled out). If the applicant is not the owner of the subject property, provide a Letter of Authorization with original signature. 2  Burden of Proof.
This is known as enzyme digestion. On double stranded DNA the recognition sequence is on both strands, but runs in opposite directions. This allows the enzyme to cut both strands. Sometimes the cut is blunt, sometimes the cut is uneven with dangling nucleotides on one of the two strands.
Help:Restriction enzymes. Microbiologists and molecular biologists regularly use restriction enzymes to cut and splice DNA. Restriction enzymes work by recognizing a particular sequence of bases on the DNA. The enzyme then cuts the backbones of both strands, allowing the DNA to separate into two pieces. For example, the enzyme EcoRI (see the figure, left, top) binds to the recognition sequence GAATTC and cuts between the G and the A. It also cuts between the A and the G on the complementary strand.