DNA Lab



This is what the formation started to look like in the tube.

This is what DNA looks like from the results of the lab.



      DNA Is totally amazing!!! Well to start with, DNA is a polymer. The monomer units of DNA are called nucleotides. The polymer is called a polynucleotide. Each nucleotide consists of a 5-carbon sugar, a nitrogen containing a base that is attached to the sugar, and a phosphate group. There are four different types of nucleotides that are found in DNA which are A, G, C, and T. A is for adenine, G is for guanine, C is for cytosine, and T is for thymine. In purine bases which are adenine and guanine there are nine atoms that make up the fused rings, and all of the ring atoms lie in the same plane.

The lab that we did in class was DNA Extraction from Wheat Germ. The wheat germ soup looked like a watery brown color to begin with. Then the appearance changed as my group added detergent and swirl into it. It turned to a lime green color with brown speks. At this step it is getting into the process of creating DNA. The appearance of the mixture after the alcohol was added, was that there was five different layers and now it has created DNA. At this step DNA has been created because of the formation it has went through. At the water-alcohol interface it didn't mix and it was staying separated. At the end of this lab the DNA looked like a white clump, like a spider web. In Conclusion, I learned about the formation of DNA by doing this neat lab.