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
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
2014-04-23
11
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 (胚胎) transfer work and related procedures, said 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 (精子) 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 (爬行动物) 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’s Efforts to Clone Pandas
B、China—the Native Place of Pandas Forever
C、Exploring the Possibility to Clone Pandas
D、China’s First Cloned Panda
答案
A
解析
本题问本文的最佳标题是什么。通读全文,我们知道本文主要介绍了美国科学家对中国科学家克隆大熊猫的做法的评价,并与美国科学家正在从事的“诺亚方舟”项目作了对比。最后一段鲜明地表达了他们对中国同行所做的工作的高度评价。因此,本题的正确答案应是A“中国为克隆大熊猫所做的努力”。
转载请注明原文地址:https://kaotiyun.com/show/59WO777K
0
在职攻硕英语联考
相关试题推荐
Cananimalshaveasenseofhumor?SallyBlanchard,publisherofanewslettercalledthePetBirdReport,thinksapetparrotma
Theflowersinthevase______becausetheyhadnowater.
Anewbiotechnologyprocedurethatcouldbecomecommerciallyavailableinaslittleastwotofouryearsis"transgenosis",whic
Becauseofarecentobstacleinproduction,saleshavedroppedandaccordinglyprofitshave______.
Haveyouwinterizedyourhorseyet?Eventhoughglobalwarmingmayhavemadeourclimatemilder,manyanimalsarestillhibernat
Haveyouwinterizedyourhorseyet?Eventhoughglobalwarmingmayhavemadeourclimatemilder,manyanimalsarestillhibernat
Wealth,advancededucationanda______occupationcangiveapersonhighstatusinsociety.
随机试题
______________、阴道、直肠联合检查,称三合诊检查。
按照销售与收款业务内部会计控制制度的设计要求,销售与收款业务的不相容岗位是指()
Ⅱ型呼吸衰竭是指在海平面、静息状态、呼吸空气条件下
1.任务概况根据XX地区基础地理空间信息基准框架工程设计要求,在该地区建立高精度的GPS控制网,以满足城市规划、建设的迫切需求。然而,该地区原有的测绘成果大多为1980西安坐标系测绘成果,为了使高精度的GPS网成果更好地服务于原有测绘成果,需要将
下列部件中,属于全站仪主要组成部分的有()。
青岛位于山东半岛,在山东处于领先的经济地位,对全国的影响力较大。作为一个沿海的旅游城市,酒店业比较发达,数量众多。但整体管理水平并不高,很多酒店目前还都处于手工操作的阶段。部分酒店管理者对酒店管理系统持有排斥态度,认为没有必要在这块进行投资。但随着市场环境
关于我国粮食安全的问题,以下说法错误的是()。
论述马斯洛的需要层次理论及其应用价值。
计算下列反常积分:
HumanmaleslivingwiththeirmomsmaynotexpecttohavemuchluckhookingupthisValentine’sDay.【C1】______amongthenorthern
最新回复
(
0
)