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Biology 1201 chapter 11

Biology 1201 chapter 11 - Semi conservative model is used...

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Biology 1201 10/3/11 Molecular basis of inheritance What is the structure of the genome? -Chromosome and DNA Structure How is the genome copied? -DNA Replication What is the genome used for? -Protein Synthesis Chromosome Structure -Eucaryotic chromosome structure DNA (linear molecule) Histone Proteins DNA Replication involves making ………………. From DNA Answer- DNA DNA replication occurs in a ……………….. mechanism Answer- Semi conservative Ultimately the information in DNA is used to make: -Proteins DNA structure Four nucleotides Complementary Base Pairing (hydrogen bonds) Double Helix Anti parallel backbones How is DNA copied - Replication
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Unformatted text preview: Semi conservative model is used How do you make exact copies? What does the structure of DNA tell you about how to copy it? DNA Replication Figure 16.13 Begins at many origins Strands must separate and unwind Enzymes involved--Helicase- responsible for unwinding separating backbone-Toposiomerases- works away from orgin and relieve stress caused from unwinding in the center -SSB Proteins- keeps back bons apart, single-strand binding proteins Add primer Primase- builds primer, built antiparallel 5’ 3’ Replication DNA polymerase- makes DNA Fuse Sections DNA ligase- responsible for fusing sections together...
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