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
Until just a few years ago, making a baby boy or a baby girl was pretty much a hit-or-miss (偶然的,碰运气的) affair. Not anymore. Paren
Until just a few years ago, making a baby boy or a baby girl was pretty much a hit-or-miss (偶然的,碰运气的) affair. Not anymore. Paren
admin
2013-06-03
47
问题
Until just a few years ago, making a baby boy or a baby girl was pretty much a hit-or-miss (偶然的,碰运气的) affair. Not anymore. Parents who have access to the latest genetic testing techniques can now predetermine their baby’s sex with great accuracy, as Monique and Scott Collins learned to their delight two years ago, when their long-wished-for daughter Jessica was born after genetic prescreening at a fertility clinic in Fairfax, Virginia.
And baby Jessica is just the beginning. Within a decade or two, it may be possible to screen kids almost before pregnancy for an enormous range of attributes, such as how tall they’re likely to be, what body type they will have, their hair and eye color, and even, conceivably, their IQ and personality type.
In fact, if gene therapy lives up to its promise, parents may someday be able to go beyond weeding out undesirable traits and start actually inserting the genes they want, perhaps even genes that have been crafted in a lab. Before the new millennium, parents may be going to fertility clinics and picking from a list of options the way car buyers order air conditioning and chrome-alloy wheels. "It’s the ultimate shopping experience: designing your baby," says biotechnology critic Jeremy Rifkin, who is appalled by the prospect. "In a society which is using to cosmetic surgery, this is not a big step."
The prospect of designer babies, like many of the ethical problems posed by the genetic revolution, is confronting the world so rapidly that doctors, ethicists, religious leaders and politicians are just starting to grapple (格斗) with the implications, and trying to decide how they feel about it all.
They still have a bit of time. Aside from gender, the only traits that can now be identified at the earliest stages of development are about a dozen of the most serious genetic diseases. Gene therapy in embryos (胚胎) is at least a few years away. And the gene or combination of genes responsible for most of our physical and mental attributes hasn’t even been identified yet, making moot (无实际意义的) the idea of engineering genes in or out of a fetus (胎儿).
According to the passage, what can scientists do now with the genetic testing technology?
选项
A、Prescreen a baby’s sex.
B、Screen babies for desirable attributes.
C、Insert genes parents want.
D、Craft genes in a lab.
答案
A
解析
转载请注明原文地址:https://kaotiyun.com/show/Xig7777K
0
大学英语四级
相关试题推荐
While,almosteverydepartmentofthefederalgovernmentisconcernedaboutandinvolvedwithsomeaspectsofeducation,and【C1】
A、Therainbowcolorismorebeautiful.B、Thewomanhastoomanyblousesofthiskind.C、Theblueonelookspretty.D、Thewomann
A、Margaretwantedtoreturnsomemagazinestothewoman.B、Margaretwantedtolendsomemagazinestothewoman.C、Margaretwante
A、Extremestress.B、Hairloss.C、Declininghealth.D、Unemployment.B当男土说他正在网上查东西的时候,女士感到很好奇,问道:Baldness?由此可知男士正在遭受秃头的困扰,因此答案为B。
____________(沟通能力)isaveryimportantsocialskillthatcontributestosuccess.
Karaokemayneverbethesame,thankstoresearchbeingpresentedinNashvilledetailingthelatestfindingsineffortstocreat
Forthispart,youareallowed30minutestowriteawantadfortheSchoolMagazinewiththetitleAssistantEditorWanted.Yo
Thefoodweeatseemstohavesignificanteffectsonourhealth.Althoughsciencehasmade【S1】______stepsinmakingfoodmorefi
Thefoodweeatseemstohavesignificanteffectsonourhealth.Althoughsciencehasmade【S1】______stepsinmakingfoodmorefi
A、Becausehedoesn’tenjoythedishesatHilton.B、Becauseheisn’tfamiliarwiththewaytoHilton.C、Becausehebelievesthew
随机试题
以下审计程序中,可以作为风险评估程序的有()。
不锈复合钢板焊接覆层和基层的交界处,应按异种钢的焊接原则选择焊接材料。()
vWF的意义是
下列哪种说法是正确的
女性,56岁,腹痛,恶心、呕吐7天就诊,有胆管结石史7年,疑急性胰腺炎。目前最有意义的检查是
A.口罩B.体温计C.衣物D.穿刺针E.被服属于中度危险物品的是
常压恒温干燥法要求药物的熔点一般在
患者恶寒较甚,发热,无汗,身楚倦怠,咳嗽,咳痰无力,舌淡苔薄白,脉浮无力。治疗应首选
工伤职工发生的下列费用中,由工伤保险基金支付的有()。
北京:中华人民共和国首都
最新回复
(
0
)