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DNA Replication Model

DNA Replication Model. By: Jacob Weaver Date: 2/6/14. 3. A. T. 5. Key:. Thymine. Adenine. G. C. Guanine. Cytosine . T. A. Sugar. P hosphate. G. C. A. T. Helicase. This is a DNA Double Helix model.

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DNA Replication Model

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  1. DNA Replication Model By: Jacob Weaver Date: 2/6/14

  2. 3 A T 5 Key: Thymine Adenine G C Guanine Cytosine T A Sugar Phosphate G C A T Helicase This is a DNA Double Helix model. The A-Adenine, T-Thymine, G-Guanine, and C-Cytosine are the four nitrogenous bases in each strand of DNA. With a phosphate and a sugar makes a nucleotide. There is also a Helicase which unzips the DNA. There are 9 Adenine, Thymine, Cytosine, and Guanine bases and 9 Phosphates and sugars G C A T G C A T 3 5

  3. A T G C As the Helicase goes up through the stand of DNA is unzipping the strand. As it unzips the strand it is breaking the hydrogen bonds apart from each of the bases. T A G C A T Key: Thymine Adenine G C Guanine Cytosine A T Sugar Phosphate G C A T Helicase

  4. A T G This is showing how the hydrogen bonds are breaking as the Helicase is moving up through the DNA strand. C T A G C A T G C A T G C A T

  5. A T Key: Thymine Adenine G C Guanine Cytosine T A G C Sugar Phosphate T A Helicase G C A T G C T A

  6. A T Key: Thymine Adenine G C Guanine Cytosine T A Sugar Phosphate G C A T Helicase G C A T G C A T

  7. Key: A T Thymine Adenine G C Guanine Cytosine T A Sugar Phosphate C G Helicase A T G C A T G C A T

  8. A T Key: Thymine Adenine G C Guanine Cytosine A T G C Sugar Phosphate T A Helicase G C T A G C A T

  9. A T G C A T The Helicase finishing the dividing of the DNA strand. G C T A G C T A G C A T

  10. T A Then all the single strands, the Okarzki fragments and Ligase will form a phosphodiester bond. C G T Key: A Thymine Adenine C G Guanine Cytosine T A Sugar Phosphate C G Helicase A T T A G C G C T A T A G C A T G C A T

  11. T A On the left is the leading strand, which the bases are synthesized continuously. On the right is the lagging strand, where the bases are synthesized discontinuously . Which DNA polymer III adds five phosphate end of a free floating nucleotide to expose 3’ OH. C G T A C G T A T A G C C G A T T A G C G C T A A T T C T

  12. A T Which DNA polymer III adds five phosphate end of a free floating nucleotide to expose 3’ OH. This also occurs with the replication fork as well. G C A T G C C G A T A T C G G C T A T A G C C G A T A T

  13. A T G C A A T T G C C G A T A T Okazaki Fragments C G G C T A T A G C C G A T A T G C A

  14. A T T A G G C C A T T A G The lagging and leading have now completed the replication process. C G C A A T T C G C G T A T A G C C G A A T T

  15. A T T A The DNA replication continues like this until there is enough DNA made. G C G C A T T A G C G C A T A T C G C G A T T A G C C G A A T T

  16. The End of DNA Replication

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