DNA Discovery timeline

  • Gregor Mendel

    starts the science of genetics. Studies how pea plants pass down their character traits.
  • Frederick Griffith

    Discovered that bacteria contains a molecule that can pass down genetic information form one cell to another.
  • Avery, McCarty, and MacLeod

    Did an experiment that found that the transforming principle is DNA.
  • Erwin Chargaff

    Discovers that the amount of adenine and thymine are almost always the same amount as well as guanine and cytosine
  • Alfred Hershey and Martha Chase

    Confirmed that the genetic material of viruses is DNA
  • Rosalind Franklin and Maurice Wilkins

    Did an x-ray diffraction on DNA and confirmed that it was in the form of a double-helix.
  • James Watson and Francis Crick

    Create a model of the DNA double helix.
  • Ada Olins and Christopher Woodcock

    They discovered that DNA was wrapped around proteins called Histones.
  • The Human Genome Project

    It was a project where scientists looked at our ancestors and mapped their genes.