DNA extraction a color lab activity

AP Biology performed a DNA extraction from red and green substances! This lab activity helps students visualize one of the most important molecules on the planet, DNA. The activity can be done with simple materials found in most homes (students used used broccoli and strawberries). When molecules are insoluble (unable to be dissolved), they clump together and become visible. DNA is not soluble in alcohol; therefore, it makes the DNA strands clump together and become visible to the naked eye. Students then transfer the DNA to a small culture tube with lid. They ‘decorated’ the tube and took them home. This class is taught by Susan Kelly.