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
The government of Burkina Faso granted scientists permission to release genetically engineered mosquitoes anytime this year or n
The government of Burkina Faso granted scientists permission to release genetically engineered mosquitoes anytime this year or n
admin
2021-08-24
6
问题
The government of Burkina Faso granted scientists permission to release genetically engineered mosquitoes anytime this year or next, researchers announced Wednesday. It’s a key step in the broader efforts to use bioengineering to eliminate malaria in the region.
The release, which scientists are hoping to execute this month, will be the first time that any genetically engineered animal is released into the wild in Africa. While these particular mosquitoes won’t have any mutations (变异) related to malaria transmission, researchers are hoping their release, and the work that led up to it, will help improve the perception of the research and trust in the science among regulators and locals alike.
In Africa, the project’s success depends on more than just the science of genetic engineering. The people who live in the areas where the mosquitoes will be released must give their consent, researchers must staff and maintain labs to work with genetically modified animals, and regulators must accept the new technology. The impending (即将发生的) release of these mosquitoes serves as a stress test for the whole system.
These mosquitoes, unlike their "gene drive" counterparts, are not intended to have a lasting impact on the insect population. They have something called a "sterile (不育的) male" mutation—none of the male mosquitoes that will be released will be able to have offspring. Nearly all will be male, but less than one percent might be female—which are the only members of the species that bite. If any bite a human, they will not pass on any genetically modified material. All of the modified mosquitoes the group will release are also weaker than natural mosquitoes, so they should die off in a matter of months.
The scientists also worked hard to address questions about the science behind their efforts—including concerns about whether those "sterile males" might somehow pass on that sterile status to humans. And they even brought in linguists and worked with the village’s residents to develop a standard vocabulary of scientific phrases in Dioula, the local language, which doesn’t have words for ideas like "gene".
What do we know about "sterile male" mosquitoes?
选项
A、Only 1% of them can bite.
B、They will pass on the sterile status to humans.
C、None of them are dangerous.
D、They are stronger than normal ones.
答案
C
解析
事实细节题。由题干中的"sterile male”mosquitoes定位到第四段第二句到最后一句。由定位句可知,它们是一种带有“不育”突变的雄性蚊子,没有一只有能力产下后代。只有不到1%的蚊子可能是雌性。这些雌性蚊子即使咬人,也不会传播任何转基因物质。所有改良型蚊子也比自然型蚊子弱,因此,它们都没有危险性,故答案为C)。
转载请注明原文地址:https://kaotiyun.com/show/b677777K
0
大学英语四级
相关试题推荐
SomeschoolsintheUnitedStatesandothercountriesofferChineselanguageclasseswithgovernmentsupportfromChina.SinceCh
Everymorning,whenIdrivepastthestreetcorner,Icanalwaysseethebigsignstandingoutsidethegasstation.Thesignlis
Everymorning,whenIdrivepastthestreetcorner,Icanalwaysseethebigsignstandingoutsidethegasstation.Thesignlis
Owningacatcanreducetheriskofheartattacksandstrokesbymorethanathird,researchershavefound.Scientistssaidthat
Owningacatcanreducetheriskofheartattacksandstrokesbymorethanathird,researchershavefound.Scientistssaidthat
Owningacatcanreducetheriskofheartattacksandstrokesbymorethanathird,researchershavefound.Scientistssaidthat
苏州街原称买卖街(MerchantsStreet),乾隆时(EmperorQianlong’sreign)仿江南水乡(SouthChinatowns)而建,是专供清代帝后逛市游览的一条水街,1860年被英法联军(Anglo-FrenchAlli
随机试题
集合与它的边界的并集称集合的()。
软组织神经源性肿瘤的MRI表现,错误的是
A.强回声B.高回声C.等回声D.低回声E.无回声正常软骨呈
关于寻常型银屑病的组织病理特征,不正确的是
对债务人的特定财产享有担保权的债权人,未放弃优先受偿权利的,对于()没有表决权。
某企业向当地海关申报进口一批烤面包机,货物已运抵海关监管区内的仓库。海关根据情报,在没有通知该企业的情况下,由仓库人员陪同对这批货物进行了查验,发现该批货物是高档音响器材。该企业以海关查验时报关员不在场为由,拒绝承认查验结果。因此,当地海关不得以此对其进行
下列利息中,属于应征税利息的有()。
()是我国企业在经济改革的实践活动中,涌现出来的一件新事物,它对传统体制下“终身制”的劳动人事制度产生了巨大冲击。
坚持理论创新和实践创新也就是在哲学上坚持()。
请在“答题”菜单中选择相应的命令,并按照题目要求完成下面的操作。注意:以下的文件必须保存在考生文件夹下。【背景素材】校摄影社团在今年的摄影比赛结束后,希望可以借助PowerPoint将优秀作品在社团活动中进行展示。这些优秀的摄影作品保存在考试文件夹中
最新回复
(
0
)