DNA Extraction Lab
In the lab you will extract DNA from green peas, strawberries or bananas.
If the banana contains DNA, it will appear as a white stringy solid substance
between a water layer (that was left behind) and alcohol layer, which is DNA extracted in the
form of a precipitate.
bananas (1/2 cup of either one)
small glass containers
wooden stir stick
Add 100 ml of bananas, 1ml of salt and 200 ml of cold water into the blender.
Blend on high for 15 seconds
Pour the blender mixture through a strainer into a measuring cup
Add 30 ml (2 Tablespoons)
of liquid detergent to the mixture, swirl and let sit for 7 -8
Pour the mixture into several small glass containers until about a third full
Add a small splash (⅛ tsp) of pineapple juice into each container