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
51
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、They are little sheep.
B、They are mice.
C、They are lambs.
D、They are little pigs.
答案
D
解析
转载请注明原文地址:https://www.tihaiku.com/zcyy/2878549.html
相关试题推荐
[originaltext]Ifyoujudgebythenumberofpeoplewhogotoseethegames
[originaltext]Ifyoujudgebythenumberofpeoplewhogotoseethegames
[originaltext]W:Hi,youlookalittlelost.Doyouneedsomehelp?M:No,than
[originaltext]W:Hi,youlookalittlelost.Doyouneedsomehelp?M:No,than
[originaltext]Theyearis2501,andtheEarthisdesperatelyshortoffuel.
[originaltext]W:Excuseme,sir.I’mnewhere.Couldyoushowmehowtomakea
[originaltext]W:Excuseme,sir.I’mnewhere.Couldyoushowmehowtomakea
[originaltext]M:Ithinkyou’dbetterfindanotherpartner.Ilovetabletennis
[originaltext]M:Ithinkyou’dbetterfindanotherpartner.Ilovetabletennis
[originaltext]M:Ithinkyou’dbetterfindanotherpartner.Ilovetabletennis
随机试题
Ifhehadn’tstoodundertheladdertocatchyouwhenyoufell,you______here
Theauthor’spurposeoftellingtheoldjokeinparagraph1istoprove______.
______,herealizedhemadetherightdecision.A、BeforelongB、LongbeforeC、Aft
自动喷水灭火系统调试应包括下列内容()。A.水源测试 B.消防水泵调试 C
在一次TCP连接中,如果某方要关闭连接,则应该发出()。A.RST B.F
踝关节背屈的正常活动度是A.0°~10° B.0°~15° C.0°~20°
一个单位和气团结,但是业绩平平,你怎么看待这个现象?
汇率对证券市场的影响有()。 A.—国的经济越开放,证券市场的国际化程度越
培训的机会成本包括( )A.支付给外部培训师的讲课费 B.因在郊区度假村租用
银行承兑汇票的承兑银行,应当按照票面金额向出票人收取()的手续费。A:千分之一
最新回复
(
0
)