Biomed Timeline By Austin Vandevander Nov 7, 1952 Dr. George Gey establishes a continuous cell line taken from a human cervical carcinoma isolated from Henrietta Lacks, who died of the cancer in 1951. Nov 7, 1953 Dr. James Watson and Dr. Francis Crick reveal the 3-D structure of DNA. Nov 7, 1954 Dr. Joseph Murray performs the first kidney transplant between identical twins Nov 7, 1955 An enzyme, DNA polymerase, involved in the synthesis of a nucleic acid, is isolated for the first time. Nov 7, 1957 Scientists prove that sickle-cell anemia occurs due to a change in a single amino acid in hemoglobin cells. Nov 7, 1958 Dr. Arthur Kornberg of Washington University in St. Louis makes DNA in a test tube for the first time. T Nov 7, 1960 french scientists discover messenger RNA (mRNA). Nov 7, 1961 Scientists understand genetic code for the first time Nov 7, 1962 Dr. Osamu Shimomura discovers the green fluorescent protein in the jellyfish Aequorea victoria. Nov 7, 1963 Independent groups in the United States, Germany and China synthesize insulin, a pancreatic hormone.