12-1 DNA

Beschreibung

Quick summary of chapter 12, section 1 about DNA in the Biology textbook of California Prentice Hall.
Taylor Nguyen
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Taylor Nguyen
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Zusammenfassung der Ressource

12-1 DNA
  1. Hershey-Chase Experiment
    1. Bacteriophage: virus that infects bacteria
      1. genetic material is DNA, not proteins
      2. Nucleotides: 5-carbon sugar (deoxyribose), phosphate group, nitrogen base
        1. Guanine Cytosine Adenine Thymine
        2. Components and Structure of DNA
          1. Chargaff's Rules: Percentages of C and G are equal
            1. X-Ray pattern from Franklin showed that DNA was helix
              1. DOUBLE HELIX
                1. Watson and Crick made a model of a double helix, in which two strands were wound around each other.
                  1. Rule of Base Paring states that hydrogen bonds can only form between certain base pairs
              2. Griffith wanted to learn how certain types of bacteria can produce pneumonia
                1. Transformation: one strain of bacteria changed into another
                  1. Avery and other scientists: genes pass through generations by DNA
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