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
Genetic Engineering is a radical and rapidly developing technology that touches our lives through its application in medicine, f
Genetic Engineering is a radical and rapidly developing technology that touches our lives through its application in medicine, f
admin
2020-12-14
81
问题
Genetic Engineering is a radical and rapidly developing technology that touches our lives through its application in medicine, forensics, industry and agriculture. Through this science humans are fast in becoming the architects of life but there are those who warn against the unknown dangers of playing God while others see its benefits in our fight against disease and the production of abundant food supplies.
In the past 50 years, plant and animal production has increased dramatically. Today, the human population is the largest it has ever been and fortunately we produce more food per capita than ever before. Despite the fact that we have enough food for every single human being to have an adequate diet, about 1 billion people still suffer from malnutrition and hunger. A lot of the increase in food production is attributed to efficient farming methods and environmental factors such as irrigation, pest and weed control but the largest contributing factor is modern plant and animal breeding.
So what are GM foods and what are the concerns for the consumer? The main difference between GM foods and traditional breeding methods is the direct modification or manipulation of certain genes. Traditional methods involve mixing thousands of genes whereas genetic modification allows just one individual gene, or a small number of genes, to be inserted into a plant, or animal.
The benefits of GM foods are enormous. Genetic modification can be used to give crops immunity to plant viruses or to improve the nutritional value of a plant. In animals intended for food, genetic modification could potentially increase how fast and how big they grow. Starvation on any part of the planet could be a thing of the past as we could control the yield, varieties and size of foods and produce strains that are resistant to pests, are extreme in temperature and are tolerant to herbicides.
Opponents of GM foods however consider their production to be the world’s biggest uncontrolled biological experiment, a disaster waiting to happen. The biggest concerns are the effects that an uncontrolled genetically modified species could potentially have on human and animal health, agriculture, and on the environment as a whole. Genetically modified species have the potential to become biological pollutants that are far worse than chemical pollutants as they would be virtually impossible to control since they are alive, migrate and could mutate producing even more dangerous offspring. This could lead to irreversible damage to the ecology of the planet.
The author defines genetic engineering as______.
选项
A、a brand new technology that will shape our planet
B、an updated technology that merely benefit human beings
C、a dangerous technology that should be functioned in the laboratory
D、a new and emerging technology that has had an effect on many aspects of our lives
答案
D
解析
细节题。原文第一段第一句话明确表明,“Genetic Engineering is a radicaland rapidly developing technology that touches our lives through its application inmedicine,forensics,industry and agriculture.”即对应选项D,基因工程是一项新出现的技术.它对我们生活的方方面面产生影响。
转载请注明原文地址:https://kaotiyun.com/show/6yP7777K
0
大学英语六级
相关试题推荐
Who’sReallyAddictingYoutoTechnology?[A]"NearlyeveryoneIknowisaddictedinsomemeasuretotheInternet,"wroteTonyS
RichChildrenandPoorOnesAreRaisedVeryDifferently[A]ThelivesofchildrenfromrichandpoorAmericanfamilieslookmore
A、Languagespeopleuseininternationalcommunication.B、ThepopularityofEnglishasaworldlanguage.C、ThedevelopmentofEng
A、Therearenotenoughefficientmanagers.B、Itlacksinguidelinesfornewemployees.C、Theconferencescheduleshouldchangei
A、Peoplethinkowningahomeisquiteadmiring.B、Rentingahomecanprotectyoufromnegativethings.C、Choosingbetweenbuying
A、ItisclosingdownsomefactoriesintheUS.B、Itnolongeroffershigh-payingjobs.C、Thenumberofitsemployeesisdoubled
A、It’salowimpactactivityandnoonewantstodoitB、Ithelpsuspractisethesamelargemusclegrouprhythmically.C、It’sa
A、Summeremploymentopportunities.B、Awebsiteforpostinginformation.C、JobinformationatHarvard.D、Databaseforstudents’t
A、Avisittoaprison.B、Theinfluenceofhisfather.C、Atalkwithsomemiserableslaves.D、HisexperienceinthewarbetweenF
随机试题
旋覆代赭汤治疗橘皮竹茹汤治疗
关于土石混填路基的施工,正确的说法是()。
涉及库存现金和银行存款的经济业务只编制付款凭证。()
王某是未办理税务登记的个体工商户。税务机关在税务检查中发现王某在2014年9月应纳税款3万元,由于他未申报缴纳税款,于是在10月11日向其送达了催缴税款通知书,责令其15日内缴纳上述税款。王某直至10月31日仍未缴纳税款。一般情况下,税务机关应()
在商业银行风险管理实践中,来自前台有问题的原始数据和信息应当由后台风险管理部门负责集中修正。()
【2015年陕西西安/2014年贵州凯里】教师在所从事的教育教学活动中,严格按照《宪法》和教育方面的规律、法规以及其他的相关法律、法规,使自己的教育教学活动符合法制化,这就是()。
宣政院
某校在实施一项帮助问题学生的特殊教育计划时,泄露了一些学生的家庭困难和个人生理缺陷的信息,导致这些学生的尴尬和不安,甚至有学生再也不愿意上学。根据联合国《儿童权利公约》,这所学校做法违背了()
IfYandVareconstant,andMdoubles,thequantityequationimpliesthatthepricelevel
Thelatestprojectistotakeacityofaroundhalfamillioninhabitantsanddiscoversexactlywhatrawmaterials【S1
最新回复
(
0
)