Allow the tube to stand for 10-15 minutes, or until the next laboratory, if necessary. A large amount of DNA should appear as a white mucus-like substance in the tube. The isolated DNA in the test tubes can be poured down the drain. Unused meat tenderizer can be poured back in the bottle from which it was obtained and saved for future use. The toothpicks can be put in the regular trash.
Scientists can isolate DNA from cells of any plant, animal, or microorganism.
In this laboratory procedure, you will isolate DNA from E. coli bacteria. Write your name or initials on a test tube containing detergent. Pour the E. coli solution from a test tube into your tube of detergent. Cap the tube, invert it slowly several times to mix the solution without foaming, and place the tube in a hot water bath at 55-60 C for 10 minutes. Observe changes in the clarity of the solution.