DNA


 * 1.What is DNA and where is it found? **

Deoxyribonucleic acid, or more commonly known as DNA is the genetic material that carries information about an organism, and is passed from parent to offspring, and directs all the cell’s functions (contains all the instructions necessary for life). Every cell in a body has a complete set of DNA. Most of the DNA in a cell lies in the center of the cell, in 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 comes in long strands called **chromosomes**. Each strand of DNA contains millions of pairs of molecular compounds called **bases**. There are usually only four chemicals that bond in pairs to form DNA **cytosine**, **guanine**, **adenine**, and **thymine**. The base pairs can arrange themselves in millions of different sequences because the length of the DNA chain is long.

The follow screenshots were taken from the video about DNA on www.brainpop.com media type="youtube" key="tJBWPuTghM0" height="364" width="483" The following video is emdedded from www.brainpop.com. DNA. media type="youtube" key="FUA6_Ucw3i4" height="368" width="487" This video is embedded from www.youtube.com. The DNA Song. media type="youtube" key="V9BZ3zx8b8I" height="315" width="420" This following video is embedded from www.youtube.com. Bill Nye the Science Guy - DNA and Chromosomes.