Dna

History of DNA

By grimeseyk27
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    The History of DNA

  • Frederick Griffith

    Frederick Griffith
    Frederick Griffith tests pneumonnia with R and S types. Through his experimentation he determines that something is carrying the genes of the virus.

  • P.A. Levene

    P.A. Levene
    Levene identifies the different components of DNA and RNA and linked them to phosphate sugars.

  • Oswald Avery

    Oswald Avery
    Oswald Avery conducts tests based off the the experiments of Frederick Griffiths and deterines that DNA is the carrier of genetic material.

  • Erwin Chargraff

    Erwin Chargraff

  • Rosalind Franklin

    Rosalind Franklin
    Rosalind Franklin's experiments paved the way by giving a new shape of the DNA which later was used to form the double helix.

  • Linus Pauling

    Gave a speech on molecular genetics which stated that mental illness stems from a imbalance of enzymes in the brain.

  • James Watson and Francis Crick

    James Watson and Francis Crick
    James Watson and Francis Crick deduce the shape of DNA using previous information which wins them the Nobel Prize.

  • Hershey and Chase

    Hershey and Chase
    Experiments done by Martha Chase and Alfred Hershey where the two showed that DNA is the carrier of genetic material by tracing it and proteins through a bacteria cell.

  • Maurice Wilkins

    Maurice Wilkins
    Maurice Wilkins uses x-rays to form the helical structure of DNA.