Tommy


 * DNA (QS 3-4) **** How and why does DNA copy itself? **

During the first part of cell cycle, the cell makes copy of the exact copy of the DNA inside of it's nucleus. This process is called DNA replication.

** What are genes and where are genes found? ** media type="custom" key="11586904" http://www.youtube.com/watch?v=z685FFqmrpo&feature=related media type="file" key="dna-rna2.swf" width="360" height="270" align="center"

[|**http://www.stolaf.edu/people/giannini/flashanimat/molgenetics/dna-rna2.swf**]



What are genes?

"A segment of DNA on a chromosome that codes for a specific trait ** " ** The genes are found in chromosome on a DNA molecule. What genes do is that they decide such as eye color, height, bone structure. Where are genes located?

Cells have chromosome that are located in the nucleus. Genes are located on a small part of the chromosome. media type="youtube" key="V9BZ3zx8b8I" height="315" width="420"

http://www.youtube.com/watch?v=V9BZ3zx8b8I&feature=related

media type="youtube" key="2mUf0PW58pY" height="315" width="420" http://www.youtube.com/watch?v=2mUf0PW58pY Ignore from 2:32-the end Back to Home
 * [[image:270px-Gene.png]] |||| [[image:http://www.academic-genealogy.com/DNAhelix.jpg width="280" height="363" align="left"]] ||
 * T= Thymine A= Adenine G=guanine C= Cytosine ||  ||