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Basic Methods in Cellular and Molecular Biology
Restriction Enzymes: DNA Cutting Guide
Description
Restriction enzymes are bacterial proteins that cut DNA at specific sequences. They are also called endonucleases. In bacteria, these enzymes help defend against bacteriophages, which are viruses that infect bacteria. The bacterial DNA is protected because methyl groups are added, so the restriction enzymes cut the invading ...
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Transcript
Restriction enzymes, or restriction endonucleases, are used in a variety of different applications in molecular biology. These enzymes recognize and cleave a specific DNA sequence, called a restriction site. The video you are about to watch provides some background information on these miraculous molecules and shows how to se...
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