DNA Timeline

  • Gregor Mendel

    Gregor Mendel
    Father of Genetics- discovered the fundamental laws of inheritance. He discovered that genes come in pairs, one from each parent. He recognized the patterns of inheritance from one generation to the next.
  • Oswald Avery

    Oswald Avery
    Avery worked on many strains of bacteria, applying different immunological and chemical methods. Avery published a clinical study of the tuberculosis bacterium. Avery did his Pneumococcus work at the Rockefeller and stayed there until his retirement in 1948 at the Rockefeller
  • Rosalind Franklin

    Rosalind Franklin
    She produced the X-ray crystallography pictures of BDNA which Watson and Crick used to determine the structure of double-stranded DNA.
  • James Watkins

    James Watkins
    James along with Francis Crick came up with the structure for DNA.
  • Francis Crick

    Francis Crick
    He came up with the double helix structure for DNA. He came up with the Central Dogma and Adaptor Hypothesis, which is part of a scheme to explain how information encoded in DNA is used to specify the amino acid sequence of proteins.
  • Erwin Chargaff

    Erwin Chargaff
    Erwin isolated DNA from different organisms and measured the levels of each of the four nitrogenous bases
  • Hershey-Chase

    Hershey-Chase
    They discovered that Bacteriophage, or phage for short, are viruses that attack and infect bacteria.They knew that the phage had an outer protein and inner core of DNA. The phage rely on bacteria to reproduce.
  • Seymour Benzer

    Seymour Benzer
    After Crick and Watson published their model of DNA, Benzer hatched his plan to get inside the gene by using bacteriophage with mutant rII genes. After ten years of work on the rII system, Benzer began studying how genes shape behavior.
  • David Baltimore

    David Baltimore
    Baltimore went to the Massachusetts Institute of Technology to do a Ph.D. in biophysics. Shortly after he became more interested in animal viruses, and then left MIT, and went to Rockefeller University. His work buddy Richard Franklin helped Baltimore find experimental evidence that showed how certain viruses seem to shut down synthesis of cellular RNA and induce synthesis of viral RNA.
  • Pat Brown

    Pat Brown
    Brown wanted to study “What exactly makes one person different from another and is there a practical way to distill these differences?” So Brown went back to research, he began thinking about the feasibility and usefulness of comparing the DNA of whole organisms. In 1995, Brown published the first of many papers that use DNA arrays to analyze patterns of expression.