195328 february: Watson discovers that the four DNA bases pair off: A with T and C with G. Crick is in agreement with him. Crick and Watson build them DNA model. 25 april: Watson and Crick publish them discovery on the weekly "Nature". 1960: RNA messenger and its bond with DNA in the protein synthesis is discovered.
1967: Allan Wilson and Vincent Sarich, with molecular biology, establish that men part from big apes , during its evolution, 5 millions years ago, di anni fa, instead of 25 millions. 1972: Paul Berg begins the recombinant DNA technics. Bruce Ames discovers that the chemical carcinogenic molecules that cause DNA mutations. 1973: Stanley Cohen and Herbert Boyer include a gene of an african toad inside the DNA of a bacteria. 1983: Kary Mullis gets the Pcr test (polymerise chain reaction) that permits to multiply the DNA sequences. 1984: The genetics imprint borns. 1985: Robert Gallo and Luc Montaigner publish the genetic sequence of HIV: AIDS virus. 1986: The FDA approves the first bioengineering vaccine against B hepatitis. 1990: The International Project "Human Genome" begins. 1994: The first genetically modified tomato " Flavr Svr" is put on the market. 1997: Ian Wilmut announces the cloning of Dolly the sheep (died in 2003). 1998: Two American groups are able to have grown staminal cells of an embryo. 1999: It is maked the "golden rice", genetically modified rise with betacarotene. 2000: Venter and Francis Collins announce the completion of Human genome. 2003 The anniversary of the double Helix of DNA. Pictures by Karina and Alice |