Dna replicaton byrd

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Published on February 24, 2014

Author: punxsyscience

Source: slideshare.net

DNA REPLICATION By: Brady Snyder

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

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

5’ 3’ Key H -DNA Helicase -Phosphate -Deoxyribose Nitrogenous bases C H 3’ -Cytosine G -Guanine A -Adenine T 5’ -Thymine

5’ 3’ Key H -DNA Helicase -Phosphate H 3’ -Deoxyribose Nitrogenous bases 5’ C -Cytosine G -Guanine A -Adenine T -Thymine

5’ 3’ Key H H -DNA Helicase -Phosphate -Deoxyribose Nitrogenous bases 3’ 5’ C -Cytosine G -Guanine A -Adenine T -Thymine

5’ 3’ Key H H -DNA Helicase -Phosphate -Deoxyribose Nitrogenous bases 3’ 5’ C -Cytosine G -Guanine A -Adenine T -Thymine

5’ 3’ Key H H -DNA Helicase -Phosphate -Deoxyribose Nitrogenous bases 3’ 5’ C -Cytosine G -Guanine A -Adenine T -Thymine

5’ 3’ H Key H -DNA Helicase -Phosphate -Deoxyribose Nitrogenous bases 3’ 5’ C -Cytosine G -Guanine A -Adenine T -Thymine

5’ 3’ H Key H -DNA Helicase -Phosphate -Deoxyribose Nitrogenous bases 3’ 5’ C -Cytosine G -Guanine A -Adenine T -Thymine

5’ H 3’ Key H -DNA Helicase -Phosphate -Deoxyribose Nitrogenous bases 3’ 5’ C -Cytosine G -Guanine A -Adenine T -Thymine

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

5’ 3’ Key H -DNA Helicase -Phosphate -Deoxyribose Nitrogenous bases 3’ 5’ C -Cytosine G -Guanine A -Adenine T -Thymine

5’ 3’ Key H -DNA Helicase -Phosphate -Deoxyribose Nitrogenous bases 3’ 5’ C -Cytosine G -Guanine A -Adenine T -Thymine

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

5’ 3’ Key H -DNA Helicase -Phosphate -Deoxyribose Nitrogenous bases 3’ 5’ C -Cytosine G -Guanine A -Adenine T -Thymine

5’ 3’ Key H -DNA Helicase -Phosphate -Deoxyribose Nitrogenous bases 3’ 5’ C -Cytosine G -Guanine A -Adenine T -Thymine

5’ 3’ Key H -DNA Helicase -Phosphate -Deoxyribose Nitrogenous bases 3’ 5’ C -Cytosine G -Guanine A -Adenine T -Thymine

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

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.

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