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
An ethics crisis at one of the world’s most successful human embryonic stem cell laboratories has plunged the controversial fiel
An ethics crisis at one of the world’s most successful human embryonic stem cell laboratories has plunged the controversial fiel
admin
2012-10-23
40
问题
An ethics crisis at one of the world’s most successful human embryonic stem cell laboratories has plunged the controversial field of research into a new swirl of uncertainty. The accusations surrounding Korean cloning expert Woo Suk Hwang of Seoul National University--the first scientist to grow stem cells inside cloned human embryos--has already killed a spate of planned studies that sought to prove the cells’ medical potential. The claims that Hwang may have obtained human eggs for his studies from women who felt pressured to donate are also reigniting a long-smoldering debate in the United States over the ethics of paying young women for their eggs, which are difficult to obtain but essential to the production of stem cells tailored to individuals.
Egg donation, which is generally safe but occasionally leads to serious and even life-threatening complications, has been a wedge issue in the stem cell debates, linking feminists and other liberal thinkers to conservatives who favor tighter limits on stem cell research. "We’re in danger of making women into guinea pigs for this research even before there are any treatments to be tested," said Marcy Darnovsky, associate director of the Center for Genetics and Society in Oakland, Calif. "We really need clear rules that someone is enforcing."
With current techniques, it takes dozens of eggs to make a single cloned human embryo, which is destroyed in the process of extracting the stem cells. That means that if the field of therapeutic cloning is to advance--a field involving the creation of cloned embryos as sources of stem cells that would be genetically matched to particular patients--a significant number of eggs will be needed both to fuel the initial research and eventually to satisfy the demands of patients. Scientists at Advanced Cell Technology of Worcester, Mass. , made the decision to pay women only after a long analysis by an ethics board created by the company, said scientific director Robert Lanza. He still thinks it is the right way to go, Lanza said, given the painful injections involved, the uncomfortable egg suction procedure, and the approximately 5 percent chance of a serious case of hormonal over-stimulation, which can require hospitalization. Others say such payments cannot help but be coercive, especially for poor women who might feel compelled to take on those risks just to make ends meet. In April, the National Academies, chartered by Congress to advise the nation on matters of science, released a report that recommended against payments for human eggs beyond expenses incurred by the donors, in part because of the "sensitivities" inherent in the creation of embryos destined for destruction. But the report’s impact remains uncertain as research institutions, fertility clinics and the biggest wild card of them all--Congress--mull the Academies’ findings.
The word "wedge" (Line 2, Para. 2) most probably means ______ .
选项
A、a forceful evidence
B、a turning point
C、a cause
D、a flaw
答案
C
解析
如果辩论中的一个话题是非常有说服力的,或者一个转折点,或者有致命缺陷,那么根本就构不成一个辩论的条件了,因此只有C“一个原因”,一个会引发一场辩论的原因才是符合逻辑的。
转载请注明原文地址:https://kaotiyun.com/show/Y69O777K
0
考博英语
相关试题推荐
TheresearchalsoraisesthepossibilitythatyoungerpeopleA(treat)successfullyforcancerB(withchemotherapy)maybeC(subj
Hersuccessfuljumpbroughta______cheerfromthecrowd.
IfIcouldenvisageareasonablyquickandcomprehensivesolutiontothecrisisinIraq,Iwouldnothaveentitledmyspeech"Th
Signsofdeafnesshadgivenhimgreatanxietyasearlyas1798.Foralongtimehesuccessfullyconcealeditfromallbuthismo
Signsofdeafnesshadgivenhimgreatanxietyasearlyas1798.Foralongtimehesuccessfullyconcealeditfromallbuthismo
随机试题
游某从国外归来,因携带商品过多被罗湖海关认定为走私,李某欲提起行政复议,下列关于复议机关说法正确的是:()
下列因素中与急性中毒发病的时间密切相关的有
工程咨询的业务范围包括()。
柱中箍筋直径不应小于()倍纵向钢筋的最大直径。
对某些价值小、数量多、逐一清点工作量大的财产物资,可以采用测量计算盘点法进行财产清查。
美味鸭舌,一种风味小吃,真空包装,每包15克
在个人汽车贷款贷前调查中,当借款人的居住地址与户口簿记录地址一致时,必须提供居住证明。()
甲在2005年与乙结婚登记,2010年又与丙登记结婚,并生一子。2015年甲与乙离婚。现甲与丙的婚姻()(2019年一专一第35题)
有如下函数模板定义:template<classT>Tfunc(Tx,Ty){returnx*x+y*y;}在下列对func的调用中,错误的是
A、Becausehelikestoknowmoreaboutforeigncultures.B、Becauseheisgoingtoworkinothercountriessoon.C、Becausehehas
最新回复
(
0
)