首页
登录
职称英语
[originaltext] They are Big Bertha and Tiny Tina, a couple of little pigs. T
[originaltext] They are Big Bertha and Tiny Tina, a couple of little pigs. T
游客
2023-07-29
86
管理
问题
They are Big Bertha and Tiny Tina, a couple of little pigs. They may look and act differently, but they are identical. They are the newest cloned animals from Texas A&M University, which with their births leads the academic studies in the number of species cloned. And the fact that animals with the exact same genes can be of different sizes and have different character traits may be just the first of many things that scientists hope can be learned from these little pigs.
This latest cloning project-and the wealth of information scientists hope it will provide- is just one of the many such animal-cloning experiments under way. Even as the human- cloning debate has filled headlines, scientists have cloned everything from mice to Iambs to bulls.
And this is only the beginning, say cloning supporters. For instance, breeding disease- resistant cows could save people’s lives in third-world countries. And by cloning endangered species, animals such as the prairie chicken and desert bighorn sheep could be saved from extinction.
选项
A、By cloning endangered species.
B、By preventing them from being killed.
C、By watching over them carefully.
D、By conducting many experiments.
答案
A
解析
转载请注明原文地址:https://www.tihaiku.com/zcyy/2878551.html
相关试题推荐
[originaltext]M:Hello,Marry.What’supwithyou?W:Oh,Tom.It’smylandlady
[originaltext]M:Hello,Marry.What’supwithyou?W:Oh,Tom.It’smylandlady
[originaltext]M:Hello,Marry.What’supwithyou?W:Oh,Tom.It’smylandlady
[originaltext]Aroundtheyear1000A.D.,somepeoplefromnorthwestIndia
[originaltext]Iamlivinginasmallvillageinthecountry.MywifeandI
[originaltext]Iamlivinginasmallvillageinthecountry.MywifeandI
[originaltext]M:There’saletterhereforyou,Mum.W:Thanks,John.Oh,no,n
[originaltext]M:There’saletterhereforyou,Mum.W:Thanks,John.Oh,no,n
[originaltext]M:Haven’tyouheardthatProf.Emersonwillactasthenewdean
[originaltext]M:Haven’tyouheardthatProf.Emersonwillactasthenewdean
随机试题
IthasbeenfiveyearssinceheboughttheTVset.He____________theTVset_
Whichofthefollowingwasmostresponsibleforassuringthattheterroristatta
Youwillhearacollegelecturertalkingtoagroupofstudentsabouttwocas
(Website)VisitorAgreementStatesman.comisprovidedtoyo
Manyparentsthesedaysfacethesamestruggle—atwhatageshouldtheybuyt
斯克里亚宾的交响诗作品()完全摒弃大小调体系,运用“神秘和弦”写作,并使用了雷
属于解表类的是A.安宫牛黄丸 B.人参再造丸 C.柏子养心丸 D.防风通圣
检测变压器箱体、储油柜、套管、引线接头及电缆等,红外热像图显示应无异常(
某企业发行2年期债券,每张面值1000元,票而利率10%,每年计息4次, 到期
2×20年12月20日,甲、乙公司签订了一项不可撤销合同,合同约定甲公
最新回复
(
0
)