DNA Replication
DNA Replication:    SEMICONSERVATIVE         MODELFIG 16.10
Semi-conservativeThis processis fueledby…nucleosidetriphosphates
DNA is made from5’ to 3’ and it isread from 3’-5’.The 3’ end is theend whichelongates (grows)
Leading & Laggingstrands•made 5’-3’Okazaki fragments(are of the laggingstrand)ENZYMES:•Helicase (not shown)•DNA Polymerase...
Enzymes•Helicase•Single strand bindingproteins•Primase(RNA Primer)•DNA Polymerase•Ligase•Nuclease and DNAPolymerase(both a...
Repairing mistakes
Telomeres•Unfilled gap leftat the ends of theDNA strands dueto the use of RNAprimers•Eventualshortening of DNAover time•Do...
Dna replication Lecture
Dna replication Lecture
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Dna replication Lecture

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Dna replication Lecture

  1. 1. DNA Replication
  2. 2. DNA Replication: SEMICONSERVATIVE MODELFIG 16.10
  3. 3. Semi-conservativeThis processis fueledby…nucleosidetriphosphates
  4. 4. DNA is made from5’ to 3’ and it isread from 3’-5’.The 3’ end is theend whichelongates (grows)
  5. 5. Leading & Laggingstrands•made 5’-3’Okazaki fragments(are of the laggingstrand)ENZYMES:•Helicase (not shown)•DNA Polymerase•ligase
  6. 6. Enzymes•Helicase•Single strand bindingproteins•Primase(RNA Primer)•DNA Polymerase•Ligase•Nuclease and DNAPolymerase(both are repairenzymes)
  7. 7. Repairing mistakes
  8. 8. Telomeres•Unfilled gap leftat the ends of theDNA strands dueto the use of RNAprimers•Eventualshortening of DNAover time•Dolly, cancer,telomerase

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