<tt id="6hsgl"><pre id="6hsgl"><pre id="6hsgl"></pre></pre></tt>
          <nav id="6hsgl"><th id="6hsgl"></th></nav>
          国产免费网站看v片元遮挡,一亚洲一区二区中文字幕,波多野结衣一区二区免费视频,天天色综网,久久综合给合久久狠狠狠,男人的天堂av一二三区,午夜福利看片在线观看,亚洲中文字幕在线无码一区二区
          您現在的位置: Language Tips> Audio & Video> Normal Speed News  
           





           
          Nobel Medicine Prize awarded for stem cell research
          [ 2007-10-09 09:43 ]

          Download

          The Nobel Prize in Medicine or Physiology will be shared this year by three researchers, two Americans and a Briton, for their studies of embryonic stem cells in mice. Kevin Billinghurst was on the scene for VOA when the announcement was made at the Karolinska Institute in Stockholm.

          "The 2007 Nobel Prize in Physiology or medicine goes to Mario Capecchi, Martin Evans and Oliver Smithies for their discoveries of principles for introducing specific gene modifications in mice by the use of embryonic stem cells," said Professor Christer Betsholtz of the Karolinska Institute, announcing the winners of perhaps the most prestigious award in medicine.

          Mario Capecchi, orphaned during World War II in his native Italy, made his way to the United States and earned a doctorate from Harvard University in 1967. He is currently Distinguished Professor of Human Genetics and Biology at the University of Utah and a member of the National Academy of Sciences.

          Oliver Smithies is a British-born American holding the post of Excellence Professor of Pathology and Laboratory Medicine at the University of North Carolina at Chapel Hill.

          Capecchi and Smithies studied the process by which natural selection increases genetic variation in a population by exchange of DNA sequences.

          Working together, they set out to prove that this homologous recombination could be used to specifically modify genes in mammalian cells. Their process came to be known as gene targeting.

          By 1986, the two began working with Dr. Martin Evans a professor at Cardiff University in UK and a Fellow of the Royal Academy, who provided the cellular vehicle that Capecchi and Smithies needed by showing that mouse embryonic stem cells would pass on introduced genetic modifications.

          Embryos from one mouse strain were injected with stem cells from another strain and carried to term by surrogate mothers. The offspring was subsequently mated, and the presence of stem cell-derived genes was detected in the next generation. These genes would now be inherited according to Mendel's laws.

          "Gene targeting has meant a revolution to biomedical sciences because it allows us to study of the function of genes in normal physiology - in healthy conditions, but also in disease," continued Betsholz. "You may object when I say our genes, because mice are mice and men are men. But although we may consider ourselves the multi-tasking crown of evolution, it is actually so that we share approximately 95 percent of our genes with mice. And this means that by studying mouse genetics we can infer the function of our own genes."

          Capecchi, Smithies and Evans will share an award of more than $1 million, and they will be invited to Stockholm this December to receive their gold Nobel medallions from Sweden's King Carl XVI Gustaf.

          surrogate mother:代孕母親

          (Source: VOA 英語點津姍姍編輯)

           
           
          相關文章 Related Stories
           
                   
           
           
           
           
           
                   

           

           

           
           

          48小時內最熱門

               
            Lewis Hamilton 劉易斯?漢密爾頓
            “爽約”怎么說
            下午茶的起源
            全球變暖 海象“搬家”
            安妮斯頓獲封“封面王”

          本頻道最新推薦

               
            女孩的心思誰能猜:Suspended from class
            《說點什么吧》:Say something anyway
            Mountain and cowboy culture meet in Jackson Hole
            Livestock disease spreads in Britain
            Working magic in the garden with beans

          論壇熱貼

               
            “凈臉聯盟”兩周年——迎國慶特別活動啟動
            how to translate“三局兩勝”
            知青 農民工 怎么翻譯
            "魅力城市" 英文怎么說?
            請教:統一口徑的譯法
            Mountain Story 大山的故事






          主站蜘蛛池模板: 欧乱色国产精品兔费视频| 狠狠爱五月丁香亚洲综| 亚洲精品国产综合久久久久紧| 国产裸体永久免费无遮挡| 日本成熟少妇喷浆视频| 久久国产免费直播| 午夜三级成人在线观看| 国产乱人激情H在线观看| 国产精品嫩草影院入口一二三| 国产伦码精品一区二区| 中文字幕日韩有码av| 国产亚洲精品第一综合另类| 久久99国产视频| a毛片在线看片免费看| 97人妻中文字幕总站| 天堂av色综合久久天堂| 午夜福利片1000无码免费| 国产成人不卡一区二区| 国产综合视频一区二区三区| 四虎在线成人免费观看| 成人国产av精品免费网| 一区二区三区av天堂| 爆乳日韩尤物无码一区| 亚洲男人AV天堂午夜在| 久久精品99久久久久久久久| 肉大捧一进一出免费视频| 在线看a网站| 国产精品高清一区二区三区| 2019最新久久久视频精品| 99精品久久免费精品久久| 国产av亚洲精品ai换脸电影| 久热这里只有精品视频3| 无码一区二区三区久久精品| 国产呦交精品免费视频| 日韩亚洲国产综合高清| 免费无遮挡毛片中文字幕| 91久久性奴调教国产免费| 全免费A级毛片免费看无码| 最新国产精品拍自在线观看| 精品国产一区二区三区国产馆| 精品 日韩 国产 欧美 视频|