首页
登录
职称英语
Genetic Engineering is a radical and rapidly developing technology that touc
Genetic Engineering is a radical and rapidly developing technology that touc
游客
2023-08-22
21
管理
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. [br] 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://tihaiku.com/zcyy/2948863.html
相关试题推荐
Todaynanotechnology(纳米技术)isstillinaformativephase.Yetitismaturing
Todaynanotechnology(纳米技术)isstillinaformativephase.Yetitismaturing
Todaynanotechnology(纳米技术)isstillinaformativephase.Yetitismaturing
Todaynanotechnology(纳米技术)isstillinaformativephase.Yetitismaturing
Todaynanotechnology(纳米技术)isstillinaformativephase.Yetitismaturing
Technology,Costs,LackofAppealSlowE-TextbookAdoption[A]Textbo
Technology,Costs,LackofAppealSlowE-TextbookAdoption[A]Textbo
Technology,Costs,LackofAppealSlowE-TextbookAdoption[A]Textbo
Technology,Costs,LackofAppealSlowE-TextbookAdoption[A]Textbo
Technology,Costs,LackofAppealSlowE-TextbookAdoption[A]Textbo
随机试题
Internationalairlineshaverediscoveredthebusinesstravelers,themanor
Allthearticlesareuntouchableinthemuseum.博物馆内一切展品禁止触摸。注意article应译为“物件”而非“文
试述在教学中评判学生操作技能的标准。
利润中心和投资中心的区别在于,利润中心有投资决策权,而且在考核利润时需要考虑所占
下列哪项不是手指的精细运动的是:A.指尖捏 B.指腹捏 C.柱状抓握 D.
口服短效避孕药的时间是A.自然流产1个月后 B.足月产及中孕引产后1个月 C
( )是指依据中国法律在中国境内设立的主要以人民币对中国境内非公开交易股权进行
断路器灭弧室爆炸,检查时如需进入室内,应开启所有排风机进行强制排风(),并用检漏
词句发展迅速并开始掌握书面语言,这是()阶段的特点。A.学龄前期 B.学龄期
A.残疾患者的康复护理指导 B.食品卫生法制定 C.儿童卡介苗的接种 D.
最新回复
(
0
)