DNA Timeline

  • Johann Gregor Mendel

    Johann Gregor Mendel

    Mendel did research with pea plants and it took him eight years (1856-1863) and he published his results in 1865. It wasn't until 1900, that his experimental results were understood.
  • Friedrich Miescher

    Friedrich Miescher

    Miescher moved to Tubingen to work in the laboratory of biochemist Hoppe-Seyler. Leucocytes was his source material, he first researched the proteins in these cells.
  • Mendel's research is rediscovered

    Mendel's research is rediscovered

    Mendel's experiments from 1866 are rediscovered A British man named William Bateson soon translates Mendel's paper into English
  • William Bateson

    William Bateson

    The word "genetics" is coined by William Bateson.
  • Chromosome Theory

    Chromosome Theory

    The chromosome theory of heredity is confirmed in studies of fly eye color inheritance by Morgan and colleagues.
  • Beadle and Tatum

    Beadle and Tatum

    One gene encodes one protein, as described by Beadle and Tatum.
  • Lederberg and Tatum

    Lederberg and Tatum

    Genetic material can be transferred laterally between bacterial cells, as shown by Lederberg and Tatum
  • Chemical Stucture of DNA

    Chemical Stucture of DNA

    Maurice Wilkins, Rosalind Franklin, Francis H. C. Crick of Britain and James D. Watson of the U.S. discover chemical structure of DNA, starting a new branch of science--molecular biology.
  • RNA and DNA

    RNA and DNA

    Messenger RNA is the intermediate between DNA and protein.
  • Genetic Code

    Genetic Code

    The Genetic code was discovered scientists were now able to predict characteristics by studying DNA. This lead to genetic engineering and genetic counseling.
  • Fred Sanger

    Fred Sanger

    DNA sequencing technology is developed by Fred Sanger.
  • First Crime

    First Crime

    A team of scientists began the project to map the human genome.
    The first crime conviction based on DNA fingerprinting, in Portland Oregon.
  • Gene therapy

    Gene therapy

    Gene therapy was used on patients for the first time.
  • FDA approved

    FDA approved

    The FDA approved the first genetically engineered food -- FlavrSavr tomatoes engineered for better flavor and shelf life.
  • Pat Brown

    Pat Brown

    DNA microarrays are invented by Pat Brown and colleagues.
  • Dolly the Sheep

    Dolly the Sheep

    Dolly the Sheep - the first adult animal clone.
  • Clinton and Lewinsky

    Clinton and Lewinsky

    Senate begins the Clinton/Lewinsky scandal based on DNA evidence.
  • Craig Ventor and Francis Collins

    Craig Ventor and Francis Collins

    Craig Ventor and Francis Collins announce the sequencing of the entire human genome.
  • Cloning

    Cloning

    Controversies continue over human and animal cloning, research on stem cells, and genetic modification of crops.