DNA Timeline

Gregor Mendel finds out how parents pass on discrete inheritable traits

Jan 1, 1866

source He cultured pea plants because they were easily controlled for mating and had readily distinguishable varieties. It showed how parents pass off their traits to their offspring.

Oswald Theodore Avery

Jan 1, 1913

sourceAvery worked on many strains of bacteria, applying different immunological and chemical methods. In 1913, Avery published a clinical study of the tuberculosis bacterium.

Erwin Chargaff

Mar 17, 1950

sourceBegan investigations of DNA composition. Published facts leading to molecular structure, w/ 3 of "Chargaff's Rules"
A = T , G = C , A+G = T+C

Hershey and Chase experiments

Mar 17, 1952

sourceProvided further proof genes were DNA. Worked with DNA virus that infects E. Coli. Found when certain bacteriophage contain proteins it can make radioactive.

Watson & Crick

Mar 17, 1953

sourceProposed the double helix theory, Used cardboard cutouts to represent A, T, G, & C, and other nucleotite units and realized it fit together perfectly. Paired by hydrogen bonding

Rosalind Franklin

Mar 17, 1954

Source She proved the double helix was the shape of DNA. then began to work on studying virus particles. Made important discoveries of tobacco mosaic virus and polio.

DNA Technology

Mar 17, 1956

source , the structure and composition of DNA was elucidated and confirmed previous studies more than a decade earlier demonstrating DNA is the genetic material that is passed down from one generation to the next

Test Tube Baby

Jul 25, 1978

<ahref='http://history1900s.about.com/od/medicaladvancesissues/a/testtubebaby.htm' >source</a>
"Louise Joy Brown was 1st test tube baby, born in great britain. mostly for females with fallopian tube/fertilization problems. Also causes ethical problems

DNA in court cases

Mar 17, 1986

source
ENglad police had Alec Jeffreys investigate using DNa & forensics a 17 year old in 2 rape-murders Colin pitchfork . dna skills Brought to america in '87

Dolly the Sheep

Jul 5, 1996

Sourcefirst mammal to be cloned by cells, not embryo. only one out of 277 attempts. Dolly born after 148 days

CRISPR

Mar 17, 2000

source
tool allows you to edit dna genomes. targets mutations and czan be injected to treat mutation in human cells.

Human Genome Project

Apr 17, 2003

source
research effort to sequence/map all the genes of humans together, known as genome. Finally can read nature's complete genetic blueprint for building a human being.

biotechnology

Mar 17, 2016

source
technology based on biology. provides breakthrough technologys to fight rare diseases, reduce enviromental footprint, feed hungry &, use less/cleaner energy