DNA Timeline

By: Mariah Kelchen and Paris Schaul

1869

Friedrich Miescher was the first to identify DNA by isolating nuclei.

1909

Phoebus Levene determined that DNA is made up of nucleotides--phosphate linked to a sugar linked to one of the four bases.

1953

Maurice Wilkins, Rosalind Franklin, Francis H., C. Crick and James D. Watson discovered the chemical structure of DNA, starting a new branch of science--molecular biology.

1953

James Watson and Francis Crick discovered the double helix structure of DNA.

1959

Arthur Komberg won a Nobel prize for being the first to isolate DNA polymerase and the first to synthesize DNA in a test tube.

1966

The genetic code was discovered and now scientits can predict characteristics by studing DNA.

1972

Paul Berg produced the first recombinant DNA molecule.

1983

Barbara McClintock was awarded the Nobel Prize for her discovery that genes are able to change position on chromosomes.

Late 1980´s

An international team of scientists began the project to map the human genome.

1997

Dolly the Sheep became the first adult animal clone.