BME DNA Demo

Walk through the process of extracting DNA from a piece of onion! Follow the commands, make sure to add the right amounts of each substance, and watch as your DNA forms in the final steps.

*** * * * Controls: * * * ***

A to cut the onion,
S to blend the onion,
D to Add a Salt/Detergent solution,
F to add Isopropyl Alcohol,
G to add a DNA Buffer or Meat Tenderizer Solution,
H to filter the beaker's contents,
and J to transfer 2ml of the solution.

Twos sets of full-Length lab instructions can be linked to from the previous page. Use the "Onion DNA Extraction Instructions" link for this exercise, and the "General" instructions for any.

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