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Neo/Sci. Isolate & observe actual DNA in your classroom! Class size - 40 students.
DNA has often been called "the building block of life". Therefore, the extraction of this key biological material, which is the first step in its analysis and manipulation, is of primary importance to the field of biotechnology. Due to its sub-microscopic size, most of your class may think that it is impossible to see DNA with the naked eye. With a little help, though, they can actually do just that! Your students will use a simple and quick method to isolate DNA and observe its physical characteristics using a variety of sources, including onion, liver, thymus gland, wheat germ and others.
Your students will: isolate and observe DNA from onion cells; describe the appearence and physical characteristics of the isolated DNA; identify advances and uses of biotechnology and debate the risks and benifits.