首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Gene therapy and gene based drugs are two ways we could benefit from our growing mastery of genetic science. But there will be o
Gene therapy and gene based drugs are two ways we could benefit from our growing mastery of genetic science. But there will be o
admin
2011-01-10
30
问题
Gene therapy and gene based drugs are two ways we could benefit from our growing mastery of genetic science. But there will be others as well. Here is one of the remarkable therapies on the cutting edge of genetic research that could make their way into mainstream medicine in the coming years.
While it’s true that just about every cell in the body has the instructions to make a complete human, most of those instructions are inactivated, and with good reason: the last thing you want for your brain cells is to start churning out stomach acid or your nose to mm into a kidney. The only time cells truly have the potential to turn into any and all body parts is very early in a pregnancy, when so called stem cells haven’t begun to specialize.
Yet this untapped potential could be a terrific boon to medicine. Most diseases involve the death of healthy cells—brain cells in Alzheimer’s, cardiac cells in heart disease, pancreatic cells in diabetes, to name a few; if doctors could isolate stem cells, then direct their growth, they might be able to furnish patients with healthy replacement tissue.
It was incredibly difficult, but last fall scientists at the University of Wisconsin managed to isolate stem cells and get them to grow into neural, gut, muscle and bone cells. The process still can’t be controlled, and may have unforeseen limitations; but if efforts to understand and master stem cell development prove successful, doctors will have a therapeutic tool of incredible power.
The same applies to cloning, which is really just the other side of the coin; true cloning, as first shown with the sheep Dolly two years ago, involves taking a developed cell and reactivating the genome within, resetting its developmental instructions to a pristine state. Once that happens, the rejuvenated cell can develop into a full fledged animal, genetically identical to its parent.
For agriculture, in which purely physical characteristics like milk production in a cow or low fat in a hog have real market value, biological carbon copies could become routine within a few years. This past year scientists have done for mice and cows what Ian Wilmut did for Dolly, and other creatures are bound to join the cloned menagerie in the coming year.
Human cloning, on the other hand, may be technically feasible but legally and emotionally more difficult. Still, one day it will happen. The ability to reset body cells to a pristine, undeveloped state could give doctors exactly the same advantages they would get from stem cells: the potential to make healthy body tissues of all sorts, and thus to cure disease. That could prove to be a true "miracle cure".
Which of the following is true according to the text?
选项
A、The principle of gene therapy is applicable to that of cloning.
B、The isolation of stem cells is too difficult to be feasible.
C、It is reasonable for all body instructions to be activated.
D、Cloned animals will eventually take control of the world.
答案
A
解析
转载请注明原文地址:https://kaotiyun.com/show/QncO777K
本试题收录于:
NAETI中级口译笔试题库外语翻译证书(NAETI)分类
0
NAETI中级口译笔试
外语翻译证书(NAETI)
相关试题推荐
Doctorswarnedsun-starvedtouristswhoreceivedtoomuchsunlightthattheywereatseriousriskthanothersofcontractingski
WewillshipthegoodsonMondayaccordingtoyourorderlesswehearfromyoubyFriday.
Remembertoaskfora______ofqualityforthesegoods;otherwisetheywillnotofferanymaintenance.
Inonesense,wecantracealltheproblemsoftheAmericancityback【C1】______asinglestartingpoint;weAmericansdon’tlike
Idon’tdoubthowtheplanwillbewellreceived.
BenjaminFranklinwasrememberedforhisgoodjudgment.
尊敬的梅莱斯•泽纳维总理阁下,尊敬的各位国家元首和政府首脑阁下,尊敬的非洲联盟委员会主席阿尔法•乌马尔•科纳雷阁下,各位代表团团长、部长和大使阁下,女士们,先生们://我很高兴来到亚的斯亚贝巴,与出席中非合
下面你将听到的是一段有关文化方面的讲话。Whatweneedisa"CultureofTolerance",awaytoreconciletheneedforidentitywithanopenandou
美国人交朋友主要有四种方式:工作中、学校里、通过共同的爱好或者一个共同的兴趣,比如说志愿者工作,或者通过一个互相的朋友网。这句话主要讲的是四个方面,第一句话总的不难听懂,后面四个方面也不难听懂,这句话的翻译难点在于要作好比较。四个方面可以简单地记成work
A、TonybrokeanarmandalegforthesakeofBarbara.B、ThenecklaceTonyboughtwasveryexpensive.C、Tonywasnotgenerousen
随机试题
A.胀痛B.隐痛C.刺痛D.重痛气虚所致头痛是
消防应急照明和疏散指示系统中消防应急集中电源无法在应急照明控制器主机上登录时,先检查集中电源与应急照明控制器连接的控制器局域网络线是否接反,再查看CAN线是否断开,确保连接良好。()
关于N-乙酰-β-D-氨基葡萄糖苷酶(NAG)错误的是
芍药汤的组成药物不包括
在信用活动中,让出商品或货币的一方若仅持有所有权或债权的凭证,有到期不能收回的可能。这体现了信用基本特征中的()。
下列对项目管理服务的认识,正确的是()。
Theelephantwaslyingheavilyonitsside,fastasleep.Afewdogsstartedbarkingatit.Theelephantwokeupinaterriblean
专门机关与广大群众的结合,足在双方目标—致基础上的结合,主导方面是人民群众。()
InthistextwereadaboutGrandma’s______?Whatdoestheword"shared"inLine7mean?
HistorianstendtotellthesamejokewhentheyaredescribinghistoryeducationinAmerica.It’stheone【C1】______theteachers
最新回复
(
0
)