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
58
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
Whenwecreditthesuccessfulpeoplewithintelligence,physicalstrengthorgoodluck,wearemakingexcusesforourselvesbeca
Hersuccessfuljumpbroughta______cheerfromthecrowd.
PeterPalumbo,chairmanoftheArtsCouncil,saidthenationalcompaniesweresosuccessfulcommerciallythatwhentherewasas
Signsofdeafnesshadgivenhimgreatanxietyasearlyas1798.Foralongtimehesuccessfullyconcealeditfromallbuthismo
Signsofdeafnesshadgivenhimgreatanxietyasearlyas1798.Foralongtimehesuccessfullyconcealeditfromallbuthismo
Doctorsinthishospitalhavesuccessfully______100surgicaltreatmentstoremedythosesufferingnearsightedness.
随机试题
《战国策》是一部()
下列哪一项是脂肪组织的CT值:
A.桑杏汤B.杏苏散C.沙参麦冬汤D.麦门冬汤E.百合固金汤咳嗽喉痒,口干鼻燥,或身热,舌红少津,苔薄黄,脉数。治疗应首选()
患儿,2岁。麻疹恢复期,体温突然再次升高,出现嗜睡、惊厥等症状,该患儿可能出现的并发症是
甲之父与乙登记结婚,二人均系再婚。甲之父去世后,甲因为遗产继承问题与乙发生纠纷,遂向人民法院提起行政诉讼,认为当初甲之父与乙二人没有亲自到民政部门办理结婚登记,该结婚登记是违法的,民政部门应该撤销婚姻登记。则下列哪些说法是错误的?()
以上材料中有哪些不妥之处?请指出来并改正。招标公告的内容主要有哪些?
师生关系的本质是()
你所在的部门是新组建的,同事都是从其他单位调来的,互相之间都不熟悉,因此工作积极性不高。如果让你组织活动来增进大家的了解,你会如何组织?
歌剧《魔笛》的曲作者是()。
以下为电子商务的产生和发展提供了技术基础的是
最新回复
(
0
)