Genetic Code I- Transcription MIX

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Genetic Code I- Transcription MIX

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  1. The Genetic Code I:

    Slide 1 - The Genetic Code I:

    • Transcription
  2. Review

    Slide 2 - Review

    • DNA is nucleic acid. It is a long-chained molecule made of nucleotides. It is found in the nucleus of every cell
    • The structure of DNA is basically the same in all living things.
    • Backbone = sugar and phosphate
    • Middle = nitrogen bases (A, T, G, C)
    • A always pairs with T, G always pairs with C
    • DNA replication is the process of copying DNA
    • The two strands separate
    • One new strand is built on top of each existing strand (use base pairing)
  3. What is a Gene?

    Slide 3 - What is a Gene?

    • A segment of DNA that contains instructions for building a specific protein
  4. A Familiar Analogy:

    Slide 4 - A Familiar Analogy:

  5. The Genetic Code: Two Key Processes

    Slide 5 - The Genetic Code: Two Key Processes

    • Transcription: copying the information from the gene
    • DNA  RNA (the copy)
    • The RNA can leave the nucleus
  6. Table Comparing DNA to RNA

    Slide 6 - Table Comparing DNA to RNA

    • DNA
    • RNA
    • Number of Strands?
    • 2
    • 1
    • Nitrogen Bases?
    • A, T, G, C
    • A, U, G, C
    • Sugar?
    • Deoxyribose
    • Ribose
  7. Example:

    Slide 7 - Example:

    • DNA
    • RNA
    • Protein
    • AAT GGC CCA ATT
    • TTT GTT CTT ACT
    • CCC CAC ACT TCC
  8. Example:

    Slide 8 - Example:

    • DNA
    • RNA
    • Protein
    • AAT GGC CCA ATT
    • UUA CCG GGU UAA
    • TTT GTT CTT ACT
    • AAA CAA GAA UGA
    • CCC CAC ACT TCC
    • GGG GUG UGA AGG
  9. Summary of the Processes of Transcription and Translation

    Slide 9 - Summary of the Processes of Transcription and Translation