Dna Lecture

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  • Good job. I like the connection with CSI. Students seem to enjoy shows that focus on solving crime issues and the connection to a lesson on DNA is great.
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  • It was so exciting to learn, when I was in high school. I always love biology so thanks for sharing...
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  • When I was in school we just had to make a model of DNA, but the edible part of your project would make it less of a chore for students. Now I'm craving Twizzlers...
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  • What a fun idea. Edible projects always get kids' attentions.
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  • I absolutely love your activity idea! It will motivate students to learn about the structure of DNA and also aid in recall once it comes test time.
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Dna Lecture

  1. 1.
  2. 2. Man released after 26 years in prison for a crime he didn’t commit <br />Anthony Caravella was ordered released after a private laboratory test revealed someone else&apos;s DNA at the crime scene.<br />
  3. 3. DNA<br /><ul><li>Deoxyribonucleic Acid
  4. 4. 1 DNA molecule consists of a double helix connected together by nucleotides
  5. 5. nucleotides- subunits that make-up DNA</li></li></ul><li>Nucleotides<br />Sugar-phosphate backbone<br />Each nucleotide has 3 main parts:<br />A phosphate group<br />A 5-carbon sugar molecule <br />A nitrogen containing base <br />Nitrogen bases <br />Phosphate <br />Sugar molecule <br />
  6. 6. Nucleotidescont. <br /><ul><li>There are 4 different nucleotides in DNA
  7. 7. Purines</li></ul>Adenine <br />Guanine <br /><ul><li>Pyrimidines</li></ul>Thymine <br />Cytosine <br />Adenine<br />Guanine<br />Thymine <br />Cytosine <br />
  8. 8. Pairing of Bases <br /><ul><li>Purines and Pyrimidines are always paired together !!</li></ul>Adenine and Thymine will always pair <br />Guanine and Cytosine will always pair <br />
  9. 9. DNA Structure and Base Pairing<br />http://www.youtube.com/watch?v=qy8dk5iS1f0&feature=related<br />
  10. 10. Activity:<br />Model Directions: <br />Adenine - Red Dot <br />Guanine – Green Dot<br />Thymine - Yellow Dot <br />Cytosine - Orange Dot (pink)<br />Twizzlers– sugar/phosphate backbone <br />
  11. 11. Questions??<br />

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