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
2024-03-01
28
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://tihaiku.com/zcyy/3494809.html
相关试题推荐
[originaltext]InHollywood,everybodywantstoberich,famousandbeautifu
[originaltext]InHollywood,everybodywantstoberich,famousandbeautifu
[originaltext]InHollywood,everybodywantstoberich,famousandbeautifu
[originaltext]MyfriendLeomakesupweakandpoorexcuseswheneverthere’s
[originaltext]W:Bob,doyouknowwhoIsawtheotherday?OldJake,lookingte
[originaltext]W:Bob,doyouknowwhoIsawtheotherday?OldJake,lookingte
[originaltext]InBritain,anyonewhoisphysicallyandmentallyfitandoverth
[originaltext]M:Hi,Molly!Whatareyoudoinghere?W:Hi,Jack.Theusualthi
[originaltext]M:Hi,Molly!Whatareyoudoinghere?W:Hi,Jack.Theusualthi
[originaltext]M:So,whatareyourthoughtsonthisproject?Tobehonest,I’m
随机试题
关于追加投资额的说法,下列正确的是()。A、持仓头寸获利后立即平仓,不再追加投资B、持仓头寸获利后追加的投资额应等于上次的投资额C、持仓头寸获利后追
Britishairisfarcleanerthanitwasafewdecadesago.Fewerpeopleusec
对于承重墙梁其最大跨度允许值为( )。A.6m B.12m C.9m D
商标注册的原则有( )。A.自愿注册与强制注册相结合的原则 B.商标标志合
根据我国现行规定,关于预备费的说法中,正确的是( )。 A、基本预备费以工程
2~3岁小儿,正常心率是()。A.120~140次/分 B.110~130次
1999年版FIDIC标准合同族的新黄皮书是指()。A、《施工合同条件》B、
用药错误的主要类型包括A.转抄错误 B.调剂错误 C.给药错误 D.监测错
在下列青春期龈炎的临床特征中,不正确的是A:好发于前牙唇侧 B:临床上与药物性
男性,45岁,酗酒后8小时出现中上腹疼痛,放射至两侧腰部,伴恶心、呕吐。体检:腹
最新回复
(
0
)