在线观看亚洲精品专区-在线观看亚洲免费-在线观看亚洲免费视频-在线观看亚洲欧美-欧美freexxx-欧美free嫩交video

食品伙伴網服務號
 
 
當前位置: 首頁 » 專業英語 » 專業知識 » 正文

轉基因動物 Transgenic Animals -生物名詞

放大字體  縮小字體 發布日期:2005-05-13


一種生物(通常是老鼠),將外來基因轉入其體內成為其基因組的一部分。引入的基因先被分離出來并設計使其攜帶適當片段。然后將這段基因注入受精卵,方法如下:對一只雌老鼠注射激素使其產生大量卵;讓一只雄老鼠與其交配使部分卵受精;將這些卵收集起來,在其卵裂前注入外來基因物質。這些卵被移植入另一個雌性體內,在那里它們發育成型。在某些卵里基因物質在隨意位點與染色體整合而成為老鼠細胞的遺傳物質。由這種卵發育成的動物將攜帶該基因從而成為轉基因動物。轉基因動物對于描述新發現基因的功能和在大動物體內產生有益蛋白質十分有用。


An organism (typically a mouse) that is engineered to carry a foreign gene, or transgene of choice, as part of its own genetic material. The gene to be introduced is first isolated and engineered (using the techniques of genetic engineering) to carry appropriate elements. The transgene of choice is then injected into a fertilized egg, which is obtained as follows; A female mouse is injected with several hormones to cause it to produce numerous eggs; The female is then mated with a male so that some of the eggs are fertilized; the eggs are collected before they divide and are injected with the foreign genetic material. These eggs are then transplanted back into another (recipient) female, in which they can develop to term. In some of the eggs, the genetic material integrates at a random site on a chromosome and so becomes part of the mouse cell’s genetic material. The animal resulting from that egg will therefore carry that gene and so is a transgenic animal. Trangenic animals are very useful for delineating the function of newly discovered genes as well as for producing useful proteins in large animals (e.g. the production of alpha anti-trypsin in goat’s milk).

更多翻譯詳細信息請點擊:http://www.trans1.cn
 
[ 網刊訂閱 ]  [ 專業英語搜索 ]  [ ]  [ 告訴好友 ]  [ 打印本文 ]  [ 關閉窗口 ] [ 返回頂部 ]
分享:

 

 
推薦圖文
推薦專業英語
點擊排行
 
 
Processed in 0.220 second(s), 18 queries, Memory 0.89 M
主站蜘蛛池模板: 青草青草视频2免费观看 | 一区二区亚洲视频 | 天堂视频在线视频观看2018 | 久久成人福利视频 | 欧美日韩一区在线观看 | 7777奇米影视 | 午夜视频1000部免费看 | 天天爽夜夜爽 | 全免费a级毛片免费看不卡 全日本爽视频在线 | 国产午夜小视频 | 国产成人精品本亚洲 | 男人的天堂午夜 | 色婷婷精品综合久久狠狠 | 在线观看s色 | 色噜噜狠狠色综合欧洲selulu | 久久99精品久久久久久臀蜜桃 | 久草天堂 | 偷偷鲁影院手机在线观看 | 91色在线播放 | 五月婷婷在线视频 | 欧美日韩你懂的 | 日韩一区二区三区在线 | 五月激激| 午夜高清在线观看免费6 | 四虎最新免费观看网址 | 成人在线免费 | 加勒比一本一道在线 | www深夜视频在线观看高清 | 欧美成人免费全部观看天天性色 | 福利一区在线观看 | 国产三级在线看 | 一级毛片免费在线观看网站 | 一区二区亚洲视频 | 亚洲成网站www久久九 | 欧美在线天堂 | 被cao到合不拢腿腐男男 | 亚洲第一区第二区 | 成年全黄大色大黄 | 寄宿日记免费看 | 中文天堂在线最新2022更新 | 91久久婷婷国产综合精品青草 |