Students learn about restriction enzymes and how they work through this lesson.  First they will use an interactive website to see how the restriction enzymes locate their cut sites on the DNA and then actually cut the DNA, so it can be combined with other DNA to make a recombinant organism.  Then they use two additional worksheets to practice ¨cutting DNA¨ on paper.  Then they conduct the Restriction Enzyme Activity, where they write out a DNA strand on paper and physically cut the DNA using scissors to create their own recombinant strand of DNA.