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DNA Replication

DNA Replication. DNA Replication. DNA is a set of instructions for making proteins When a cell divides, each new cell needs an entire set of DNA Therefore, DNA must be copied. The process of copying DNA is called replication The process of replication is done by enzymes

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DNA Replication

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  1. DNA Replication

  2. DNA Replication • DNA is a set of instructions for making proteins • When a cell divides, each new cell needs an entire set of DNA • Therefore, DNA must be copied. • The process of copying DNA is called replication • The process of replication is done by enzymes • Helicase separates the DNA molecule • DNA polymerase attaches free nucleotides and proofreads the molecules

  3. Replication • DNA “unzips” • Both sides becomes templates • DNA polymerase attaches complementary nucleotides to each template • Two identical DNA strands are produced • Each new molecule has one new strand and one original strand

  4. Replication Complementary DNA is “unzipped” by the enzyme: ___________________nucleotides are placed according to the template. When both sides are completed, two _________________strands are produced helicase identical

  5. Complementary Base Pairing

  6. Semi-Conservative

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