DNA Replication Notes

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General notes on DNA structure/replication.

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DNA Replication Notes

  1. 1. DNA Replication Occurs inside the nucleus!
  2. 2. Nitrogenous Base (Adenine)
  3. 3. Nitrogenous Base (Adenine)
  4. 4. Nitrogenous Base (Adenine) Complementary Base Pairs Adenine (A) - Thymine (T) Cytosine (C) - Guanine (G) Purines - Adenine, Guanine Pyrimidines - Cytosine, Thymine
  5. 5. Nitrogenous Base (Adenine) Complementary Base Pairs Adenine (A) - Thymine (T) Cytosine (C) - Guanine (G) Purines - Adenine, Guanine Pyrimidines - Cytosine, Thymine
  6. 6. “Backbone” Nitrogenous Base (Adenine) of DNA Complementary Base Pairs Adenine (A) - Thymine (T) Cytosine (C) - Guanine (G) Purines - Adenine, Guanine Pyrimidines - Cytosine, Thymine Nucleotide -monomers of DNA
  7. 7. Nitrogenous Base (Adenine) Complementary Base Pairs Adenine (A) - Thymine (T) Cytosine (C) - Guanine (G) Purines - Adenine, Guanine Pyrimidines - Cytosine, Thymine Nucleotide Hydrogen Bond
  8. 8. A.K.A - Leading Strand
  9. 9. A.K.A - Leading Strand A.K.A - Lagging Strand
  10. 10. DNA Helicase “Unzips” DNA A.K.A - Lagging Strand A.K.A - Leading Strand
  11. 11. DNA Helicase “Unzips” DNA A.K.A - Lagging Strand A.K.A - Leading Strand DNA Polymerase - adds nucleotides continuously on Strand I
  12. 12. DNA Helicase “Unzips” DNA A.K.A - Leading Strand A.K.A - Lagging Strand DNA Polymerase - adds nucleotides continuously on Strand I …but discontinuously on Strand II using “Okazaki Fragments”
  13. 13. DNA Helicase “Unzips” DNA A.K.A - Leading Strand A.K.A - Lagging Strand Okazaki Fragments DNA Polymerase - adds nucleotides continuously on Strand I …but discontinuously on Strand II using “Okazaki Fragments”
  14. 14. DNA Helicase “Unzips” DNA A.K.A - Leading Strand A.K.A - Lagging Strand Okazaki Fragments DNA Polymerase - adds nucleotides continuously on Strand I …but discontinuously on Strand II using “Okazaki Fragments” The fragments are “stitched” together by the enzyme Ligase

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