DNA+Questions+1-2

**DNA stands for deoxyribonucleic acid, and it is a nucleic acid. You can think of it as “the blueprint of your body”. It tells the cells in your body what 'jobs' to do. Everyone's DNA is different. Almost every cell in your body contains DNA, and it can be found at the center of your cells, inside the nucleus .** ** 2.What does it look like (its structure) and what is it made from? **  ** DNA is arranged in a spiral shape called a double helix, and it looks like a twisted ladder. **** It comes in long strands called chromosomes. Each strand contains millions of pairs of molecular compounds called bases. There are 4 types of nitrogen bases that pair up in DNA: cytosine, guanine , adenine , and thymine. You can think of the paired bases as rungs of the ladder. These base pairs arrange themselves in millions of different sequences since a chain is very long. The pairs are like codes that tell them what to do. Adenine always makes hydrogen bonds with Thymine, and Guanine always makes hydrogen bonds with Cytosine. The backbone of the ladder is made of Phosphate and Deoxyribose Sugar. **
 * 1.What is DNA and where is it found? **
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DNA Structure Video media type="youtube" key="qy8dk5iS1f0" height="360" width="480" pictures from: @http://learn.genetics.utah.edu/content/begin/tour/

Useful Sites: @http://prezi.com/deyz1szpyr2v/dna/