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Transcript
DNA Notes Biology: Dr. Hensley / Mrs. Ingram Feb. 2017 Chromosomes and DNA Replication DNA duplication takes place in the “S” phase of the cell cycle DNA is found in the nucleus of a eukaryotic cell; linear DNA DNA is found in the cytoplasm of a prokaryotic cell; single, circular DNA Eukaryotes have 1000X more DNA than Prokaryotes!!!! DNA Structure: 1. 2. 3. 4. 5. Double Helix Wraps around proteins called Histones Nucleosome – DNA wrapped around Histones Coils Super Coils 6. Chromosome DNA Polymerase: “ase”= enzyme “polymer” = build big Makes a new DNA strand identical to the old one DNA Replication Fork – where DNA opens up Model of what Goes on other side Template or Original Strands (parent strands) provide a guide for DNA polymerase to making new strands of DNA Things to Remember About DNA Replication
