DNA History

  • Gregor Mendel

    Gregor Mendel

    "Father of Genetics"/ led an experiment which consisted of growing thousands of pea plants over 8 yrs.
  • Friedrich Miescher

    Friedrich Miescher

    performed experiments on the chemical composition of leukocytes that lead to the discovery of DNA
  • Thomas Hunt Morgan

    Thomas Hunt Morgan

    confirmed that genes are located on chromosomes. "chromosomal theory of inheritance"
  • Frederick Griffith

    Frederick Griffith

    Discovered that things inside of molecules can transfer to one another.
  • Erwin Chargaff

    Erwin Chargaff

    Found and noticed a pattern in four bases: adenine, guanine, cytosine, and thymine. Then came up with Chargaffs Rule: A=T, and G=C
  • Oswald Avery

    Oswald Avery

    Continued Griffith's experiment by destroying lipids and acids and found the inheritance molecule, DNA.
  • Hershey & Chase

    Hershey & Chase

    they used bacterial viruses to better demonstrate that DNA is the genetic material. They did this by using DNA rapped in a protein coat called phage.
  • Rosalind Franklin

    Rosalind Franklin

    Tried to crystallize DNA to obtain an X-ray pattern of its function.
  • Watson and Crick

    Watson and Crick

    They found the structure of DNA and found that it was double-helix
  • Maurice Wilkins

    Maurice Wilkins

    Tried to crystallize DNA to obtain an X-ray pattern of its function. Along with Rosalind Frankiln
  • John Sulston

    John Sulston

    developed a way to freeze and thaw mutated and wild worms.
  • Frederick Sanger

    Frederick Sanger

    developed a sequencing technique of DNA which involved scientists copying strands of DNA.