DNA Historical Timeline

  • Period: to

    DNA HIstorical Timeline

  • gregor mendel

    gregor mendel
    laws of heredity
  • P.A levene

    P.A levene
    determined the basic structure of nucleotides that make up DNA
  • fredrick griffith

    fredrick griffith
    found that one strain could transformed,or changed, into the other form
  • donald avery

    donald avery
    identified the molecule that transformed the R strain of bacteria into the S strain
  • erwin chargaff

    erwin chargaff
    found that the amount of guanine nearly equals the amount of cytosine, and the amount of adenine nearly equals the amount of thymine within a species
  • hershey- chase

    hershey- chase
    provided evidence that DNA is the transforming factor, labeled both parts of the virus to determine which part was bateria and which part was the genetic material
  • Maurice Wilkins

    Maurice Wilkins
    beginning the X-ray diffraction images of DNA that contributed to Watson and Crick's
  • rosalind franklin

    rosalind franklin
    She discovered A and B forms of DNA
  • james watson

    james watson
    came up with double helix structure
  • francis crick

    francis crick
    came up with double helix structure.proposed central dogma and adaptor hypothesis