Dna replicaton byrd

418 views

Published on

Published in: Education
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
418
On SlideShare
0
From Embeds
0
Number of Embeds
14
Actions
Shares
0
Downloads
4
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Dna replicaton byrd

  1. 1. DNA REPLICATION By: Brady Snyder
  2. 2. 5’ 3’ DNA replication starts at the origin of replication. It is in the shape of a double helix(twisted ladder). Key H -DNA Helicase -Phosphate -Deoxyribose Nitrogenous bases C 3’ -Cytosine G -Guanine A -Adenine T 5’ -Thymine
  3. 3. DNA helicase is the enzyme that unwinds and unzips the double helix shape. It breaks the hydrogen bonds. 3’ 5’ Key H -DNA Helicase -Phosphate -Deoxyribose Nitrogenous bases C 3’ H -Cytosine G -Guanine A -Adenine T 5’ -Thymine
  4. 4. 5’ 3’ Key H -DNA Helicase -Phosphate -Deoxyribose Nitrogenous bases C H 3’ -Cytosine G -Guanine A -Adenine T 5’ -Thymine
  5. 5. 5’ 3’ Key H -DNA Helicase -Phosphate H 3’ -Deoxyribose Nitrogenous bases 5’ C -Cytosine G -Guanine A -Adenine T -Thymine
  6. 6. 5’ 3’ Key H H -DNA Helicase -Phosphate -Deoxyribose Nitrogenous bases 3’ 5’ C -Cytosine G -Guanine A -Adenine T -Thymine
  7. 7. 5’ 3’ Key H H -DNA Helicase -Phosphate -Deoxyribose Nitrogenous bases 3’ 5’ C -Cytosine G -Guanine A -Adenine T -Thymine
  8. 8. 5’ 3’ Key H H -DNA Helicase -Phosphate -Deoxyribose Nitrogenous bases 3’ 5’ C -Cytosine G -Guanine A -Adenine T -Thymine
  9. 9. 5’ 3’ H Key H -DNA Helicase -Phosphate -Deoxyribose Nitrogenous bases 3’ 5’ C -Cytosine G -Guanine A -Adenine T -Thymine
  10. 10. 5’ 3’ H Key H -DNA Helicase -Phosphate -Deoxyribose Nitrogenous bases 3’ 5’ C -Cytosine G -Guanine A -Adenine T -Thymine
  11. 11. 5’ H 3’ Key H -DNA Helicase -Phosphate -Deoxyribose Nitrogenous bases 3’ 5’ C -Cytosine G -Guanine A -Adenine T -Thymine
  12. 12. 5’ DNA polymerase 3 reads the bases 35 and synthesizes 5-3 and it adds continuously onto the left side. The nitrogenous bases add to their complementary bases. 3’ Key H -DNA Helicase -Phosphate -Deoxyribose Nitrogenous bases 3’ 5’ C -Cytosine G -Guanine A -Adenine T -Thymine
  13. 13. 5’ 3’ Key H -DNA Helicase -Phosphate -Deoxyribose Nitrogenous bases 3’ 5’ C -Cytosine G -Guanine A -Adenine T -Thymine
  14. 14. 5’ 3’ Key H -DNA Helicase -Phosphate -Deoxyribose Nitrogenous bases 3’ 5’ C -Cytosine G -Guanine A -Adenine T -Thymine
  15. 15. 5’ 3’ The leading strand which is the left side and the right side synthesizes discontinuously with okasoki fragments. DNA primase adds the DNA primers to fill the right side. Key H -DNA Helicase -Phosphate -Deoxyribose Nitrogenous bases 3’ 5’ C -Cytosine G -Guanine A -Adenine T -Thymine
  16. 16. 5’ 3’ Key H -DNA Helicase -Phosphate -Deoxyribose Nitrogenous bases 3’ 5’ C -Cytosine G -Guanine A -Adenine T -Thymine
  17. 17. 5’ 3’ Key H -DNA Helicase -Phosphate -Deoxyribose Nitrogenous bases 3’ 5’ C -Cytosine G -Guanine A -Adenine T -Thymine
  18. 18. 5’ 3’ Key H -DNA Helicase -Phosphate -Deoxyribose Nitrogenous bases 3’ 5’ C -Cytosine G -Guanine A -Adenine T -Thymine
  19. 19. 5’ 3’ Polymerase changes the RNA primers into DNA and DNA ligase seals everything up with phosphodiester bonds. Key H -DNA Helicase -Phosphate -Deoxyribose Nitrogenous bases 3’ 5’ C -Cytosine G -Guanine A -Adenine T -Thymine
  20. 20. When there is an error in DNA replication, it is known as a mutation. The mutations can be the wrong bases pairing (A-G, A-C, T-G, T-C), or one of the strands of the double helix loops out such that a bases would be behind two others. Also as the cells divide, the telomeres at the ends of the genes were down they will either die or cause various problems.

×