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
Today, an estimated two-thirds of all products in supermarkets contain genetically-engineered ingredients, including tortilla ch
Today, an estimated two-thirds of all products in supermarkets contain genetically-engineered ingredients, including tortilla ch
admin
2010-04-30
30
问题
Today, an estimated two-thirds of all products in supermarkets contain genetically-engineered ingredients, including tortilla chips, drink mixes, taco shells, veggie burgers, muffin mix, and baby formulas. However, only one-third of Americans are aware that their food contain genetically-engineered ingredients, despite the findings of surveys that 85 to 90% of consumers want clear labeling of all genetically-engineered foods. Because labeling is not yet required by government regulations, nor practiced by biotech companies, there is no way for consumers to know what it is that they are eating. The public has not been adequately educated of the presence of genetically-modified ingredients in their diets and the possible risks that these foods may entail, and hence, they have been disempowered in their fights to make informed choices.
Furthermore, the inadequate efforts to educate the public on genetic engineering have been sketchy at best, as some genetic scientists have been presenting the complex process of genetic modification to the public as a simple operation. They have been erroneously giving the impression that "... one gene controls one character trait, and transferring the gene results in the transfer of the corresponding trait to the genetically-modified organism, which can then pass it on indefinitely to future generations". However, the process of genetic modification is random and can cause damage in normal genes when imperfections in the genetic code of one organism are unknowingly passed to the receiving organism. Such publications promoting "public understanding" also do not include relevant findings that show that genes function in an "... extremely complex, interconnected network, so that ultimately, the expression of each gene depends on that of every other". The introduced gene may act differently when working within its new environment. For example, there are "position effects", which can lead to unpredictable changes in the pattern of gene expression and genetic function, such as production of potentially toxic products.
The credibility of these geneticists is also questionable because almost all established molecular geneticists have "... some industrial ties, thus limiting what they can research on, particularly with regard to safety". The connections between big business and genetically- modified foods is an issue in and of itself, as it seems that biotech companies have put economic gains before safety concerns. Because the current state of biotechnology is one of misinformation and lack of information, there are moral/ethical questions raised about the responsibility of these companies, as well as the government, to regulate these industries and protect the public.
There is no way of knowing the overall, long-term effects of genetically-engineered foods on human health. This unpredictability appears to be causing the most controversy over genetically-modified foods, as there is insufficient evidence and need for further research. Moreover, the current claims for genetic engineering are misleading, and there appears to be much ignorance and/or corruption at the top with the biotech corporations, as well as the government, which seem to be more interested in short-term economic gains than in properly informing and protecting the people.
What is NOT tree about genes in the process of genetic modification?
选项
A、Genes interact with one another.
B、Normal genes may be damaged in the process.
C、The transferred gene may have different functions in different organisms.
D、The transferred trait controlled by one gene can be transferred endlessly.
答案
D
解析
转载请注明原文地址:https://kaotiyun.com/show/VfOK777K
0
大学英语六级
相关试题推荐
ToallAmericans,anotherbasic(36)______intheirconstitutionistheBillofrights,adoptedin1971.Thisconsistsof10ver
A、Water.B、Crops.C、Money.D、Trees.BWhichofthefollowingisthemainsourceofconflictbetweentheelephantsandthelocalp
Forthispart,youareallowed30minutestowriteashortessayentitledWidespreadExtravagantSpendingonCampus.Youshould
ItcanbeinferredthattheLosAngelesmoviestudioislacking______.Westerncompanieshadthoughtthecheaplabormarketfro
Theethical(伦理的)behaviorinindustrializedcountrieshasbeenputunderpressure.DuringthelastyearinNorwaywehaveseenca
A、Differencesbetweenpeoplemightgraduallydisappear.B、Differencesbetweenpeoplewillnotexistasonehopes.C、Differences
A、RecommendingJaneapart-timejob.B、AskingmorepeopletohelpJane.C、Organizingapublicdonationforher,D、GivingJaneal
Accordingtothepassage,asafamousscientist,Newtonhave______theories.Therepresentativesofthequantumtheoryare___
A、Followpolicemen’sdirections.B、Keepaneyeontheweather.C、Avoidsnow-coveredroads.D、Drivewithspecialcare.D细节题。本题询问监
Atsometimeinyourlife,youmayhaveastrongdesiretodosomethingstrangeorterrible.However,chancesarethatyoudon’t
随机试题
甲公司的一注册商标系乙画家创作的绘画作品。甲申请该商标注册时未经乙的许可。现乙认为其著作权受到侵害,与甲进行交涉。乙对于此事可采取的正确做法有哪些?
反映业主方和项目各参与方之间合同关系的结构图是()
账务系统中,下列关于系统操作员说法正确的是()。
()是会计工作得以开展的基础环节,是联结会计凭证与财务会计报告的中间环节,是编制财务会计报告的基础。
“南社区照顾”的核心是强调(),发动在社区内的亲戚朋友和居民协助提供照顾。
在“首届京剧旦角最佳演员”的坪选中,梅兰芳、程砚秋、尚小云、()当选,被誉为京剧“四大名旦”。
强调“课程是由专家开发的,教师应在课堂中忠实地呈现课程内容,传递相应理念”的课程实施取向是()
“六经皆大,而各有所长”……《春秋》正是非,故长于治人。强调《春秋》既是政治哲学教材,又是历史教科书,还是伦理道德读本的人物是
求下列不定积分:
Theirwithdrawalfromtheworldeconomyisvirtuallyimpossible.Theunderlinedpartmeans________.
最新回复
(
0
)