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
Traditional plant breeding involves crossed varieties of the 【M1】______ same species in ways they could cross naturally. For exa
Traditional plant breeding involves crossed varieties of the 【M1】______ same species in ways they could cross naturally. For exa
admin
2015-02-17
48
问题
Traditional plant breeding involves crossed varieties of the 【M1】______
same species in ways they could cross naturally. For example,
disease-resistant varieties of wheat have been crossed with
highly-yield wheat to combine these properties. This type of 【M2】______
natural gene exchange is safe and fairly unpredictable. 【M3】______
Genetic engineering(GE)involves exchanging genes between
unrelated species that cannot naturally exchange genes with each
other. GE can involve the exchange of genes between vastly
different species, e. g. putting scorpion toxin genes into maize or
fish antifreeze genes into tomatoes. It is possible that a scorpion
toxin gene, even when it is in maize DNA, will still get the
organism to produce scorpion toxin — but what other effects may 【M4】______
have on this alien environment? We are already seeing this 【M5】______
problem — adding human growth hormone genes to pigs certainly
makes them grow — but it also gives them arthritis and makes them
cross-eyed, that was entirely unpredictable. 【M6】______
It will be obvious, for example, that gene for human 【M7】______
intelligence will not have the same effect if inserted into cabbage as 【M8】______
it had in human DNA — but what side-effect would it have? In
other word, is GM(Genetically Modified)food safe to eat? The 【M9】______
answer is that nobody knows because long-term tests have not been
carried out.
The current position of the UK Government is that "There is
no evidence of long-term dangers from GM food." In the US, the 【M10】______
American Food and Drug Administration is currently being
prosecuted for covering up research that suggested possible risks
from GM foods.
【M6】
选项
答案
that—which
解析
句法错误。很显然,此分句应当是一个非限制性定语从句修饰前面所提到的意外变化,that不可以被用来引导非限制性定语从句,此处只能用which。
转载请注明原文地址:https://kaotiyun.com/show/FOdO777K
0
专业英语八级
相关试题推荐
NewresearchfromtheUnitedStatessuggeststhatthemillennia-oldtherapyofyogacouldbenefitmillionsofpeoplewhosuffe
Parentswhosmokeoftenopenawindoworturnonafantocleartheairfortheirchildren,butexpertsnowhaveidentifiedar
Attheturnofthe20thcentury,DutchphysicianChristiaanEijkmanshowedthatdiseasecanbecausednotonlybymicroorganism
AccordingtoSapir-WhorfHypothesis,whichofthefollowingisNOTtrue?
ForwhichofthefollowingisJuliusCaesarnotknown?
WhichofthefollowingisNOTacompoundword?
WhichofthefollowingworksdoesNOTshowthedesireforanescapefromsocietyandareturntonature?
A、HousesofParliamentandBigBen.B、ThesouthbankoftheThames.C、LambethBridge.D、WestminsterAbbey.B
WhenIaminaserioushumor,IveryoftenwalkbymyselfinWestminsterAbbey;wherethegloominessoftheplace,andtheusew
TheBronteSisterspublishedthefollowingnovelsEXCEPT
随机试题
某患者,24岁,尿频、尿痛3天,近2天白带增多呈脓性就诊。妇科检查:阴道黏膜充血,以手指压尿道腺时有脓性分泌物流出,触痛明显。最可能的诊断是
患者,男,24岁。反复发生发作性呼吸困难、喘息4年,可自行缓解。有荨麻疹病史。公园散步后症状复发1小时。查体:体温37.3℃,脉搏100次/分,呼吸24次/分,烦躁,双肺可闻及哮鸣音。PaO278mmHg,PaCO228mmHg。为明确诊断,最
A.地尔硫B.肼屈嗪C.哌唑嗪D.硝普钠E.硝酸甘油通过抗α1受体而治疗心衰的药物是
跟单员在联系工作事宜方面应就重要事情的安排多发传真而不是打电话()
下列关于个人汽车贷款的运行模式的说法中,错误的有()。
下列各项中应当征收增值税的是()。
某校为了提升教学质量,经过学生家长同意,将班级整合,划分为重点班和非重点班。该学校的这种做法()
什么叫数据与程序的物理独立性?什么叫数据与程序的逻辑独立性?
下列说法错误的是
Everygoodstoryiscarefully______;theelementsofthestoryreducedtofitwithoneanotherinordertomakeaneffectonthe
最新回复
(
0
)