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
考研
With only about 1,000 pandas left in the world, China is desperately trying to clone the animal and save the endangered species.
With only about 1,000 pandas left in the world, China is desperately trying to clone the animal and save the endangered species.
admin
2011-02-25
69
问题
With only about 1,000 pandas left in the world, China is desperately trying to clone the animal and save the endangered species. That’s a move similar to what a Texas A&M University researcher has been undertaking for the past five years in a project called "Noah’s Ark".
Dr. Duane Kraemer, a professor in Texas A&M’s College of Veterinary Medicine and a pioneer in embryo transfer work and related procedures, says he salutes the Chinese effort and "I wish them all the best success possible. It’s a worthwhile project, certainly not an easy one, and it’s very much like what we’re attempting here at Texas A&M—to save animals from extinction. "
Noah’s Ark is aimed at collecting eggs, embryos, semen and DNA of endangered animals and storing them in liquid nitrogen. If certain species should become extinct, Kraemer says there would be enough of the basic building blocks to reintroduce the species in the future.
It is estimated that as many as 2,000 species of mammals, birds and reptiles will become extinct over the next 100 years. The panda, native only to China, is in danger of becoming extinct in the next 25 years.
This week, Chinese scientists said they grew an embryo by introducing cells from a dead female panda into the egg cells of a Japanese white rabbit. They are now trying to implant the embryo into a host animal.
The entire procedure could take from three to five years to complete.
"The nuclear transfer of one species to another is not easy, and the lack of available panda eggs could be a major problem," Kraemer believes. "They will probably have to do several hundred transfers to result in one pregnancy. It takes a long time and it’s difficult, but this could be groundbreaking science if it works. They are certainly not putting any live pandas at risk, so it is worth the effort , "adds Kraemer, who is one of the leaders of the Missyplicity Project at Texas A&M, the first-ever attempt at cloning a dog.
"They are trying to do something that’s never been done, and this is very similar to our work in Noah’s Ark. We’re both trying to save animals that face extinction. I certainly applaud their effort and there’s a lot we can learn from what they are attempting to do. It’s a research that is very much needed. "
The best title for the passage may be______.
选项
A、China—the Native Place of Pandas Forever
B、China’s Efforts to Clone Pandas
C、China’s First Cloned Panda
D、Exploring the Possibility to Clone Pandas
答案
B
解析
选项B和C都可以成为正确答案。但B更显得中肯,朴实无华。选项C加上了“will shock the world(将使世界震惊),没有干成的事似可不必夸张。
转载请注明原文地址:https://kaotiyun.com/show/DqZ4777K
0
考研英语一
相关试题推荐
Thelevelofeconomicandindustrialdevelopmentenjoyedbyastateaffectstheforeignpolicygoalsitcanpursue.(46)Asagen
Inthefollowingtext,somesentenceshavebeenremoved.ForQuestions41-45,choosethemostsuitableonefromthelist(A、B、C、
Inthefollowingtext,somesentenceshavebeenremoved.ForQuestions41-45,choosethemostsuitableonefromthelist(A、B、C、
TheclueliesintheJapanesenamethathasbeenadoptedforthemaroundtheworld:tsunami.(46)Formedfromthecharactersfor
Whichofthefollowingdoesthe"Labormarketproblems"referto?Theauthor’spurposeinciting"repeated12-monthunemploymen
TheReaderhaslongbeentheblacksheepoftheEFLclassroom.TeacherseitherignoreReaders,orneglectandabusethem,failin
AteenagerwasunabletocallanambulanceafterherparentswereshotinFebruarybecausethefamily’sinternetphoneserviced
Whenthepublicdemands"lawandorder"andwhennewspaperseditorialstalkaboutthe"risingtideofcrime",theyhaveinmind
Shewrotean______lettertothenewspapercomplainingaboutthecouncil’saction.
Publicityisanypromotionalcommunicationaboutanorganizationoritsproductsthatispresentedbythemediabutisnotpaid
随机试题
某企业购买了一台进口计量器具。企业要求供货商提供检定证书。供货商提供了某省级法定计量检定机构出具的检定证书复印件,供货商称原件由他们保存。企业在对这台进口计量器具进行验收时,发现该设备工作不正常,出具的数据严重超差,是一台不合格的设备。企业不明白,为什么对
原子吸收法测酱油中的微量的铅时,样品经消化后,将铅用MIBK萃取至有机相进行富集分离,导入原子化器后进行测定。
A.Zollinger‐Ellison综合征B.P‐J综合征C.Garden综合征D.Budd‐Chiari综合征一般不会引起癌变的是:
A前清蛋白B转铁蛋白C结合珠蛋白Dα1-抗胰蛋白酶E低密度脂蛋白胎儿呼吸窘迫征的患儿血浆中浓度明显降低的是
M受体阻断药不包括()。
对工作周期长、专业复杂或比较特殊、投资或工程量较大的工程项目适宜采用()。
下列有关企业进行库存现金盘点清查时的做法,正确的是( )。
甲、乙因买卖货物发生合同纠纷,甲向法庭提出诉讼。开庭审理时,乙提出双方签有仲裁协议,应通过仲裁方式解决。对该案件的下列处理方式中,符合法律规定的是()。
俗话说“麻雀虽小,五脏俱全”,所以人们在进行调查研究工作时,应该抓住典型,学会“解剖麻雀”,达到举一反三、“窥一斑而知全豹”的效果。这体现的哲学原理有
Li-Fi,analternativetoWi-Fithattransmitsdatausingthespectrumofvisiblelight,hasachievedanewbreakthrough,withUK
最新回复
(
0
)