How humans discorved the role of DNA Irelyn Anderson

1865 // Gregor Mendel shows that the characteristics of pea plants are passed along in a predictable way. It begins with genetics.

1903 // Walter Sutton shows that chromosomes carry the cells units of inheritance.

1911 // Thomas Hunt Morgan demonstrates that genes are arranged in linear fashion on the chromosomes of the fruit fly.

1928 // Fredrick Griffith discovers that bacteria can contain a molecule that transfers genetic information from cell to cell.

1944 // Oswald Avery, Colin Macleod, and Maclyn McCarty shows that the substance Griffith discorves is DNA.

1950 // Erwin Chargaff analyzes the composition of DNA in cells. He analyzes a adenine and thymine are equal, and then cytosine and guanine.

1952 // Alfred Hershey and Martha Chase confirm that he genetic material of viruses is DNA not protein.

1953 // James Watson and Francis Crick publish their model of the DNA double helix.

2000 // Craig Venter and Francis Collins announce the draft of the DNA sequence of the human genome in Washington DC.


Created with images by AutrementDit Toronto. - "Fruit fly A"

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