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
What will it mean to know the complete human genome. Eric Lander of MIT’s Whitehead Institute compares it to the discovery of th
What will it mean to know the complete human genome. Eric Lander of MIT’s Whitehead Institute compares it to the discovery of th
admin
2017-04-21
93
问题
What will it mean to know the complete human genome. Eric Lander of MIT’s Whitehead Institute compares it to the discovery of the periodic table of the elements in the late 1800s. "Genomics is now providing biology’s periodic table. " says Lander. "Scientists will know that every phenomenon must be explainable in terms of this measly list" which will fit on a single CD-ROM. Already researchers are extracting DNA from patients, attaching fluorescent molecules and sprinkling the sample on a glass chip whose surface is speckled with 10,000 known genes. A laser reads the fluorescence, which indicates which of the known genes on the chip are in the mystery sample from the patient. In only the last few months such "gene expression monitoring" has diagnosed a muscle tumor in a boy thought to have leukemia, and distinguished between two kinds of cancer that require very different chemotherapy.
But decoding the book of life poses daunting moral dilemmas. With knowledge of our genetic code will come the power to reengineer the human species. Biologists will be able to use the genome as a parts list much as customers scour a list of china to replace broken plates and may well let prospective parents choose their unborn child’s traits. Scientists have solid leads on genes for different temperaments, body builds, statures and cognitive abilities. And if anyone still believes that parents will recoil at praying God, and leave their baby’s fate in the hands of nature recall that couples have already created a frenzied market in eggs from Ivy League women.
Beyond the profound ethical issues are practical concerns. The easier it is to change ourselves and our children, the less society may tolerate those who do not; warns Lori Andrews of Kent College of Law. If genetic tests in uterus predict mental dullness, obesity, short stature or other undesirable traits of the moment will society disparage children whose parents let them be born with those traits? Already, Andrews finds, some nurses and doctors blame parents for bringing into the world a child whose birth defect was diagnosable before delivery; how long will it be before the same condemnation applies to cosmetic imperfections? An even greater concern is that well-intentioned choices by millions of individual parents-to-be could add up to unforeseen consequences for all of humankind. It just so happens that some disease genes also confer resistance to disease: carrying a gene for sickle cell anemia, for instance, brings resistance to malaria. Are we smart enough, and wise enough, to know how knocking out "bad" genes will affect our evolution as a species?
It can be learned from the passage that ______.
选项
A、gene expression monitoring is helpful in curing diseases
B、all of the disease genes are harmful to human beings
C、short people may be more looked down upon in future
D、scientists are encouraged to do research on human genome
答案
C
解析
文章只表明“基因表达监测器”可用来诊断疾病,但未说可用来治疗疾病,所以A不正确;最后一段末尾说明某些致病基因可使携带者有抵抗其他疾病的能力,因此B也不正确;第2段第1句中的“daunting”(使失去勇气或信心的)表明D错误;由最后一段可以看出,基因技术的发展会使改变孩子变得容易,人们可能会对有机会改变而没被改变不利特征的孩子更加歧视。
转载请注明原文地址:https://kaotiyun.com/show/vD9d777K
本试题收录于:
BFT阅读题库国际化人才外语考试(BFT)分类
0
BFT阅读
国际化人才外语考试(BFT)
相关试题推荐
HereisaletterwhichcomplainsaboutthequalityoftheTVsetboughtinastore.Readtheletterandcompletethegiveninfor
HereisaletterwhichcomplainsaboutthequalityoftheTVsetboughtinastore.Readtheletterandcompletethegiveninfor
HereisanadvertisementaboutforacertainpositioninthenewspaperofDec.7,2005.Readtheadvertisementandcompletethe
Somepeoplebelievethatinternationalsportcreatesgoodwillbetweenthenationsandthatifcountriesplaygamestogetherthey
CarsaccountforhalftheoilconsumedintheU.S.,abouthalftheurbanpollutionandonefourththegreenhousegases.Theyta
CarsaccountforhalftheoilconsumedintheU.S.,abouthalftheurbanpollutionandonefourththegreenhousegases.Theyta
WhathappenedtoPetelastFourthofJuly?WhichisNOTtrueofsparklers?
随机试题
体外无抗癌作用的药物是
65岁的渔民在乡卫生所行右眼胬肉切除术后,术中出血多,手术时间长。术后第2天有.复视,经活血化瘀后,术后1个月,复视好转,但右眼内转不足,有外斜视。下一步的治疗方案是
抗胆碱药一般不用于下列哪种情况
企业以自己生产的产品赠送他人,由于会计核算时不作销售处理,因此不需交纳增值税。()
下列关于期货行情技术分析法的说法,不正确的是( )。
证券营业部在审查委托单时,主要是审查委托单的()。
【上海广方言馆】华东师范大学2002年中国通史真题
IP服务不具有以下哪个特点?(35)
在使用“项目管理器”对文件进行操作时,除了使用“项日管理器”中的命令按钮外,还可使用系统菜单栏中的【】菜单。
Thefactthattheworld’scitiesaregettingmoreandmorecrowdedisawell-documenteddemographicfact.CitiessuchasTokyo
最新回复
(
0
)