https://padlet.com/martifiore49/3juzdordfpo9mvxx Martina Fiorentino 3P en-us 2021-04-06 19:09:49 UTC 2023-01-28 12:05:19 UTC hello@padlet.com martifiore49 https://padlet.com/martifiore49/3juzdordfpo9mvxx/wish/1388753940 he was the first scientist to isolate nucleic acid.]]> 2021-04-06 19:12:54 UTC https://padlet.com/martifiore49/3juzdordfpo9mvxx/wish/1388753940 martifiore49 https://padlet.com/martifiore49/3juzdordfpo9mvxx/wish/1388769535 He is credited with coining the term "nucleic acid" in 1889, replacing Friedrich Miescher's term "nuclein" when it was demonstrated that nuclein was acidic]]> 2021-04-06 19:17:14 UTC https://padlet.com/martifiore49/3juzdordfpo9mvxx/wish/1388769535 martifiore49 https://padlet.com/martifiore49/3juzdordfpo9mvxx/wish/1388778606 In 1928, through what is now known as the Griffith experiment, he proposed the presence of a transformative principle underlying bacterial transformation. The experiment paved the way for the discovery of DNA as a molecule containing genetic information.]]> 2021-04-06 19:19:46 UTC https://padlet.com/martifiore49/3juzdordfpo9mvxx/wish/1388778606 martifiore49 https://padlet.com/martifiore49/3juzdordfpo9mvxx/wish/1388786334 In a series of experiments in which X-ray-induced mutations on the fungus Neurospora crassa Beadle and Tatum were analyzed, they showed that these mutations caused modifications in particular enzymes involved in cellular metabolic pathways. Thus a direct link between genes and enzymatic reactions could be proven, developing the famous hypothesis "a gene, an enzyme"]]> 2021-04-06 19:21:48 UTC https://padlet.com/martifiore49/3juzdordfpo9mvxx/wish/1388786334 martifiore49 https://padlet.com/martifiore49/3juzdordfpo9mvxx/wish/1388813095 The experiment of Alfred D. Hershey and Martha Chase finally proves in 1952 that the genetic material consists of DNA and not proteins.]]> 2021-04-06 19:29:07 UTC https://padlet.com/martifiore49/3juzdordfpo9mvxx/wish/1388813095 martifiore49 https://padlet.com/martifiore49/3juzdordfpo9mvxx/wish/1388820554  It was an X-ray chemistry and crystallographer that made fundamental contributions to understanding the molecular structure of DNA, RNA, viruses, coal, and graphite. The discovery of the STRUCTURE of DNA helped scientists understand how the inheritance of genetic information worked.]]> 2021-04-06 19:31:21 UTC https://padlet.com/martifiore49/3juzdordfpo9mvxx/wish/1388820554 martifiore49 https://padlet.com/martifiore49/3juzdordfpo9mvxx/wish/1388824369 James Dewey Watson is an American biologist. Together with Francis Crick and Maurice Wilkins he received the Nobel Prize in Medicine in 1962 for discoveries about the molecular structure of nucleic acids and their significance in the mechanism of transferring gene information to living organisms.]]> 2021-04-06 19:32:29 UTC https://padlet.com/martifiore49/3juzdordfpo9mvxx/wish/1388824369 martifiore49 https://padlet.com/martifiore49/3juzdordfpo9mvxx/wish/1388832025  he was an American biochemist, winner of the Nobel Prize in Medicine in 1959 along with the Spaniard Severo Ochoa for his discoveries on the mechanisms of biological synthesis of deoxyribonucleic acid.]]> 2021-04-06 19:34:45 UTC https://padlet.com/martifiore49/3juzdordfpo9mvxx/wish/1388832025 martifiore49 https://padlet.com/martifiore49/3juzdordfpo9mvxx/wish/1388837805 Matthew Meselson and Franklin Stahl's 1958 experiment was instrumental in determining the semiconservative mechanism of DNA replication.]]> 2021-04-06 19:36:22 UTC https://padlet.com/martifiore49/3juzdordfpo9mvxx/wish/1388837805 martifiore49 https://padlet.com/martifiore49/3juzdordfpo9mvxx/wish/1388843390 was an American biochemist. He is known for unveiling the genetic code and for interpreting its role in protein synthesis.]]> 2021-04-06 19:38:01 UTC https://padlet.com/martifiore49/3juzdordfpo9mvxx/wish/1388843390