Tuesday, April 3, 2012

DNA Structure

This is the front and back of a worksheet that we did in class that really helped me understand the structure of DNA.



      When you think of DNA you probably get confused right? I know i did, but once you learn about it and learn a little about the structure of it, it's really not too bad. It's pretty much just a pattern made up of four different parts which are called nucleotides. Each of the nucleotides is made up of a sugar or deoxyribose bound on one side to a phosphate group and bound on the other side to a nitrogenous base. The two classes of bases of nitrogen are called purines, and pyrimidines. The four bases that are in the DNA's alphabet are A which stands for adenine, C which stands for cytosine, G with stands for guanine, and T which stands for thyme. If there is one thing that i remember about all of this, it is that C and G always go together, and A and T always go together. DNA has two sides. These two sides are twisted together like a ladder, called the double helix. The hydrogen bonds between the phosphates is what causes the DNA strands to twist.  First of all DNA stands for Deoxyribonucleic acid. It forms chains of genetic material organized into chromosomes and gets passed from one generation to the other. DNA guides the cell in making new routines that determine all of our biological traits. So the reason you look the way you do, is because of your DNA, which we get from our parents.











<--------This is a picture of a DNA model that we made. It's pretty cool to be able to have the hands on experience on making one, and actually learning the parts of it and getting the hang of it.


This is a picture of a DNA model that drew while we were learning the structure of DNA and getting familiar with all of the parts that are in a DNA model. -----> 

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