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Evolution of DNA Knowledge

  • Oswald Avery

    Oswald Avery
    he and his coworkers discovered that DNA carries a cell’s genetic material and can be altered through transformation.
  • Evelyn Witkin

    Evelyn Witkin
    discovered the DNA repair mechanisms.
  • Erwin Chargaff

    Erwin Chargaff
    He experimentally determined certain crucial facts that led directly to the correct elucidation of its molecular structure.
  • Rosalind Franklin

    Rosalind Franklin
    Her photographs clearly demonstrated that DNA was a double helix and finding that flatly contradicted the widespread theory that the structure had three chains.
  • James Watson

    James Watson
    Researcher credited with co-discovering the double-helix structure of DNA.
  • Francis Crick

    Francis Crick
    Genetic code and protein synthesis was also a discovery with being the other co-discoverer of the double helix structure of DNA.
  • Hershey-Chase

    Hershey-Chase
    He confirmed that DNA is genetic material.
  • Sydney Brenner

    Sydney Brenner
    He discovered messenger RNA.
  • Johann Gregor Mendel

    Johann Gregor Mendel
    Discovered the laws of heredity.
  • Frederick Sanger

    Frederick Sanger
    discovered DNA sequencing.