Banana DNA

I extracted a banana of its DNA in science class today. It was cool! The teacher put some chopped up banana and water in a mixer and she blended it for 15-20 seconds. Then we did a cool mixture. The mixture was basically some water, some alcohol, some salt, and some shampoo. Then we poured the stuff all together with the banana. We extracted the DNA though a coffee filter over a cup, and then we put it into a little vial with alcohol in it and the DNA came to the very top. It looked like little white bubbles. And then i took it out with a paperclip and it looked funny! It looked like saliva!