DNA History

  • Law of Heredity by Johann Gregor Mendel

    Law of Heredity by Johann Gregor Mendel
    Gregor was an austrian monk who used pea plants are what us inherited. Found that genes are the inherited factors passed down.
  • Isolation of nucleic acid

    Isolation of nucleic acid
    Frederick identified DNA as a district molecue. He was an organic chemist. His dicovory was incorrect because he was unsure about his information because it as unavalible.
  • Oswald Avery

    Oswald Avery
    Awvery as born in 1877 in halifax, Nova Scotia. He showed that Fred Griffins tranfoming principle was DNA.
  • Erwin Chargaff

    Erwin Chargaff
    Erwin Chargaff was an Austro-Hungarian biochemist who immigrated to the United States during the Nazi era and was a professor of biochemistry at Columbia University medical school. Through careful experimentation, Chargaff discovered two rules that helped lead to the discovery of the double helix structure of DNA.
  • Rosalind Franklin

    Rosalind Franklin
    Rosalind Elsie Franklin was an English chemist and X-ray crystallographer whose work was central to the understanding of the molecular structures of DNA, RNA, viruses, coal, and graphite.
  • Martha Chase

    Martha Chase
    Martha Cowles Chase, also known as Martha C. Epstein, was an American geneticist who in 1952, with Alfred Hershey, experimentally helped to confirm that DNA rather than protein is the genetic material of life.