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Law of Heredity by Johann Gregor Mendel
Gregor was an austrian monk who used pea plants to show that genes are what is inherited. Found that genes are the inherited factors passed down. -
Isolation of nucleic acid
Friedrich identified DNA as a distinct molecule. He was an organic chemist. His discovery was incorrect because he was unsure about his information due to it being unavailable. -
Oswald Avery
Avery was born in 1877 in Halifax, Nova Scotia. He showed that Fred Griffith’s “transforming principle" was DNA. -
Erwin Chargaff
Erwin Chargaff was an Austro-Hungarian biochemist born in 1905. Chargaff discovered two rules that helped lead to the discovery of the double helix structure of DNA. -
Rosalind Franklin
Rosalind Franklin was born 1920 Notting Hill, London, United Kingdom. She 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 was born November 30, 1927, Cleveland Heights, OH. She was an American geneticist who experimentally helped to confirm that DNA rather than protein is the genetic material of life. -
Alfred Hershey
He was born December 4, 1908, Owosso, MI. Alfred's contribution was the discovery that DNA, and not protein, was the genetic material in bacteriophage, a discovery based on evidence from the legendary "blender experiment" undertaken with Martha Chase in 1952. -
James Watson and Francis Crick
These men came up with the structure of DNA called the double helix. They used stick and ball models to test their ideas on the possible structure of DNA. They shared the Nobel Prize in Medicine in 1962.
