DNA Replication Repair Recombination Dr Kevin Ahern Structure
DNA Replication, Repair & Recombination Dr. Kevin Ahern
Structure
Structure
Structure One Strand of DNA
Structure • Introduction
Structure • Introduction
DNA Structure
DNA Forms
Semi-Conservative Replication Discontinuous Replication on Lagging Strand (Okazaki Fragments) Continuous Replication on Leading Strand
Leading and Lagging Strand DNA Replication Leading Strand Lagging Strand
DNA Replication
DNA Replication
DNA Replication
DNA Polymerase I
DNA Polymerase I Structure
DNA Replication Proteins
Replication Fork
Beta Clamp Top View DNA Side View
Chemical Mechanism of Chain Elongation
Leading / Lagging Strand Replication
DNA Topoisomers
Topoisomerase Action
Topoisomers/Topoisomerases L = T+W L = Linking Number T = Twists W = Writhes
Polymerase Chain Reaction
Polymerase Chain Reaction
Polymerase Chain Reaction
Polymerase Chain Reaction
Polymerase Chain Reaction
DNA Proof-reading
Prokaryotic vs Eukaryotic DNA Replication • Introduction
Chromosomes With Telomeres
Linear DNA Replication
Telomerase Action
Telomerase Action
Nucleotide Excision Repair Bulky DNA Adduct
Nucleotide Excision Repair
Nucleotide Excision Repair
Nucleotide Excision Repair • Thymine Dimers
Nucleotide Excision Repair Thymine Dimer Repair Partial Strand Removal
Base Excision Repair Cytosine Deamination Cytosine Uracil
Flipping out of base from helix Base Excision Repair
Excision of Base Excision Repair Uracil-N-Glycosylase Catalysis
DNA Mismatch Repair Mismatch
DNA Mismatch Repair Unmethylated, recognizable Methylated, unrecognizable
Measuring Mutation Ames Test
DNA Recombination
DNA Recombination • Strand Invasion
Structure • Introduction
DNA Recombination • Holliday Junction
Recombination/Repair
Rec. A Recombination Repair in E. coli
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