When we did the lab earlier this week, we focused on analyzing DNA. First, we took the raw wheat and mixed it with the hot water forming the wheat germ mixture. As the detergent was added it didn't sit at the top of the wheat mixture because it wasn't liquid detergent. We were careful not to mix it so rapidly that bubbles were not created. Alcohol was added after that. As the mixture sat, our observations were that we could see a white clear substance forming at the top of the yellow dirty orangesh mixture of the wheat, water, and alcohol. With the DNA coming into contact with the alcohol, it precipitated. The stringy collage as a result of the wheat germ soup stuff was the forming. After when we lifted the DNA out of the test tube all of the stings drained of the liquid and attached together forming a yellow faded pile of goo.
By doing this lab I learned that because the wheat germ mixture was more dense than the DNA, the DNA was able to float to the top.
