1 27 Dna Structure

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1 27 Dna Structure

  1. 1. <ul><li>Taking your unit exam results, graph the results of your exam by standard. Identify which standards you “passed” (80% or higher) and what standards who need to work on (80% or lower) </li></ul><ul><li>5/6= 83% </li></ul><ul><li>4/6= 66% </li></ul><ul><li>3/6= 50% </li></ul><ul><li>2/6= 33% </li></ul><ul><li>1/6= 16% </li></ul><ul><li>8/9= 88% </li></ul><ul><li>7/9= 77% </li></ul><ul><li>6/9= 66% </li></ul><ul><li>5/9= 55% </li></ul><ul><li>4/9= 44% </li></ul><ul><li>3/9= 33% </li></ul><ul><li>2/9= 22% </li></ul><ul><li>1/9= 11% </li></ul>Launch
  2. 2. <ul><li>B1- 75% </li></ul><ul><li>B2- 68% </li></ul><ul><li>B3- 65% </li></ul><ul><li>B5- 76% </li></ul>
  3. 8. Cells Physiology Ecology Genetics
  4. 9. <ul><li>-Genetics is the study of heredity . </li></ul><ul><li>-Heredity is how different genes/traits are passed down from parents to children. </li></ul>
  5. 10. <ul><li>Heredity is determined by DNA </li></ul><ul><li>DNA stands for deoxyribonucleic acid </li></ul><ul><li>Found in the nucleus </li></ul>Rosalind Franklin took an X-Ray of DNA and helped initially determine its structure.
  6. 11. <ul><li>DNA is a double helix in which strands are complementary </li></ul>
  7. 12. Watson and Crick are responsible for publishing the results that DNA is a double helix structure
  8. 13. <ul><li>Sugar </li></ul><ul><li>Phosphate </li></ul><ul><li>Nitrogenous Bases </li></ul><ul><li>The sugar and phosphate form the backbone of the DNA. </li></ul>Sugar Phosphate backbone Nitrogenous Bases
  9. 14. <ul><li>Adenine (A) </li></ul><ul><li>Cytosine (C) </li></ul><ul><li>Guanine (G) </li></ul><ul><li>Thymine (T) </li></ul>
  10. 15. <ul><li>Adenine (A) always pairs with Thymine (T) with two hydrogen bonds </li></ul><ul><li>Cytosine (C) always pairs with Guanine (G) with three hydrogen bonds </li></ul>

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