Watson and Crick

  • Gregor Mendal

    Mendal published his work of his pea plants.
  • Rosalind Franklin

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

    Watson and Crick made a model of the DNA molecule and proved that genes determine heredity.
  • Arthur Kornberg

    Arthur Kornberg of the U.S. produced DNA in a test tube.
  • F. Sanger

    F. Sanger of Britain developed sequencing procedure for DNA.
  • Genetic code

    The Genetic code was discovered and scientists are now able to predict characteristics by studying DNA. This lead to genetic engineering, and genetic counseling.
  • Paul Berg

    Paul Berg of the U.S. produced the first recombinant DNA molecule.
  • Barbara McClintock

    Barbara McClintock of the U.S. was awarded the Nobel Prize for her discovery that genes are able to change position on chromosomes.
  • International Team of Scientists

    An international 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 was used on patients for the first time.
  • Dr. Kary Mullis

    Dr. Kary Mullis discovered the PCR procedure, for which he was awarded the Nobel prize.
  • The FDA

    The FDA approved the first genetically engineered food -- FlavrSavr tomatoes engineered for better flavor and shelf life.
  • O.J. Simpson

    DNA testing in forensics cases gains fame in the O.J. Simpson trial.
  • Dolly the Sheep

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

    Senate inquiry begins into the Clinton/Lewinsky scandal based largely on DNA evidence.
  • J. Craig Ventor

    J. Craig Ventor, along with Francis Collins, jointly announce the sequencing of the entire human genome.