Conducting a strawberry DNA Extraction experiment, students in Biology classes observed the DNA in the food they eat. Strawberries yield more DNA than any other fruit. The fruit is octoploid, which means it has eight copies of each type of chromosome. After pulverizing whole strawberries into a liquid form, students poured the liquid into a test tube and added liquid soap to break up the cell membrane. Ethanol was added to the strawberry extract and worked like a magnet to pull out the DNA strands that are fine white strands.