DNA Genetic Timeline

Events

William Harvey suggests that all living things originated from eggs

1651

JR Camerarius does pollination experiments and discovers sex in flowering plants

1694

CV Linnaeus proposes the taxonomic system including the naming of Homo sapiens

1735

Charles Darwin published Origins of Species

1859

Gregor Mendel published the results of his investigations of the inheritance of “factors” in pea plants

1866

Walter Sutton closed the gap between cell morphology and heredity

1902

Chromosomes were discovered to be heredity units

1903

Thomas Hunt Morgan shows that genes reside on chromosomes

1910

Physical changes in genes are called mutations

1927

Edward Lawrie Tatum and George Wells Beadle show that genes code for proteins

1941

Rosalind Franklin Obtained sharp x-ray diffraction photographs of DNA

1951

DNA structure is resolved to be a double helix by James Watson and Francis Crick

1953

Jo Hin Tjio and Albert Levan established the correct chromosome number in humans to be 46

1956

DNA is sequenced for the first time by Fred Sanger, Walter Gilbert and Allan Maxam

1977

Human chromosome 22 becomes first one to be sequenced completely

1999

First draft sequences of human genome are released simultaneously by the Human Genome Project and Celera Genomics

2001

Successful completion of Human Genome Project with 99% of the genome sequenced to a 99.99% accuracy

2003