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the two antiparallelanti-parallel strands. The chains. Because theythere are only
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Second step- This is one of the most important steps, is the binding RNA Primase. RNA Primase can attract RNA nucleotides which bind to the DNA nucleotides of the 3'-5' strand due to the hydrogen bonds between the bases.

Third step- The elongation process. The replication of this template is complicated and the new strand is called the lagging strand In the lagging strand the RNA Primase adds more RNA Primers.
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double helix is consistedconsists of one This is what we call semiconservativetermed semi-conservative replication.
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There are only allowed three errors in DNA replication. If more than three errors then the mutation can alter the product of a gene, or it can stop the gene from working to its complete duty or correctly. If the mutation changes a protein made by a gene it will most likely be harmful. Due to damages mutations can cause, organisms evolved to remove mutations. Mutations can be caused by exposure to radiation, viruses, transposons, and mutagenic chemicals.

{DNA_UV_mutation.gif} This is an of UV mutation.
{genetica05.jpg} This picture is an example of when DNA replication makes a mistake.
Sometimes mutations can make changes to the physical appearance of a living organism. It can also have effects on the brain and the way your brain and body develops.
of an organism.organism

A song helping explain DNA replication.
Diseases resulting in DNA replication failure
Photos illustrating DNA replication.
Photos illustrating DNA replication.
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Steps of DNA Replication

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Fourth step- Each new double helix is consisted of one old and one new chain. This is what we call semiconservative replication.
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1. Tulane, University. "Tulane University ." Tulane Cancer Center. Tulane University, n.d. Web. 17 Jan 2011. <http://tulane.edu/som/cancer/genomics-core-facility.cfm>.
2. Wiki, Pedia. "WikiPedia." Dna Replication. Tulane University, 14 Jan 2011. Web. 17 Jan 2011. <http://en.wikipedia.org/wiki/DNA_replication>.
3. "DNAReplication.info." Steps of DNA Replication. N.p., 2008. Web. 17 Jan 2011. <http://www.dnareplication.info/stepsofdnareplication.php>.

This is our citation page. This is all our citations starting with the home page.
1. Tulane, University. "Tulane University ." Tulane Cancer Center. Tulane University, n.d. Web. 17 Jan 2011. <http://tulane.edu/som/cancer/genomics-core-facility.cfm>.
2. Wiki, Pedia. "WikiPedia." Dna Replication. Tulane University, 14 Jan 2011. Web. 17 Jan 2011. <http://en.wikipedia.org/wiki/DNA_replication>.
3.

This page is our citation page. Here are our citations from every site we've used starting with the home page.
1. Tulane, University. "Tulane University ." Tulane Cancer Center. Tulane University, 01/14/2011. Web. 17 Jan 2011. <http://tulane.edu/som/cancer/genomics-core-facility.cfm
2.

DNA Replication Activities
Keynote of Replication
Citations