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
财经
With only about l,000 pandas left in the world,China is desperately trying to clone the animal and save the endangered species.T
With only about l,000 pandas left in the world,China is desperately trying to clone the animal and save the endangered species.T
admin
2013-04-04
66
问题
With only about l,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 proj ect called“Noah’s
Ark”.
Dr.Duane Kraemer,a professor in Texas A&M’s College of Veterinary Medicine and a pioneer in embryo(~胎)transfer work and related procedures,says he salutes the Chinese effort and“1 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 will become extinct over the next 1 00 years.The panda,native only to China,is in danger of becoming extract 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 resuIt in one pregnancy.It take s 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.”
What could be the major problem in cloning pandas according to Professor Kraemer?
选项
A、Lack of available panda eggs.
B、Lack of host animals.
C、Lack of qualified researchers.
D、Lack of funds.
答案
A
解析
本题题意为根据Kraeme教授的观点,克隆大熊猫最主要的问题是什么。而根据文中第七段“‘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.”可知主要的问题是“the lack of available panda eggs”,因此选项A是正确答案。
转载请注明原文地址:https://www.kaotiyun.com/show/PIgc777K
本试题收录于:
英语题库银行系统招聘考试分类
0
英语
银行系统招聘考试
相关试题推荐
Withonlyaboutl,000pandasleftintheworld,Chinaisdesperatelytryingtoclonetheanimalandsavetheendangeredspecies.T
Withonlyaboutl,000pandasleftintheworld,Chinaisdesperatelytryingtoclonetheanimalandsavetheendangeredspecies.T
“InonlysixdaysIlostsevenpoundsofweight.”“TwofullincheSinthefirstthreedays!”Thesearethekindsofstat
Itwasanexcitingmomentforthesefootballfansthisyear,__________forthefirsttimeinyearstheirteamwontheWorldCup.
Ihadanexperiencesomeyearsagowhichtaughtmesomethingaboutthewaysinwhichpeoplemakeabadsituationworsebyblaming
refertothefollowinglabel.Warning:Keepthisproductawayfromsmallchildren.Thisproductcancauseirritation.Donotgeti
Thehumannoseisanunderratedtool.Humansareoftenthoughttobeinsensitivesmellerscomparedwithanimals,【C11】______this
"HOMESTAYNETWORK"STUENDTGUIDELINESOnarrivalatyournewhome:Trytorememberthenamesofyourhostfamily.Ifun
Fromthehealthpointofviewwearelivinginamarvelousage.Weareimmunizedfrombirtha.gainstmanyofthemostdangerousd
Thepolicemanranafterthemanand_______himbythearm。
随机试题
下列腧穴中,宜采用斜刺的是()(2010年第77题)
支气管哮喘和心源性哮喘鉴别困难时,应首先选用的药物是
A.艾司唑仑B.氟西泮C.氯美扎酮D.谷维素E.10%水合氯醛入睡困难者首选()。
A、上市后药品的再审查B、上市后药品的再评价C、非预期药物作用D、药物警戒E、药物临床评价新药获得批准后,在上市的头4~6年内进行有效性和安全性调查是()。
建设项目各阶段中,影响工程造价的因素有()。[2010年考题]
水库大坝实行定期安全鉴定制度,首次安全鉴定时间为()。
根据投资对象的不同,证券投资基金可分为()。
设有关键码序列(16,9,4,25,15,2,13,18,17,5,8,24),要按关键码值递增的次序排序,采用起泡排序法,一趟扫描后的结果为______。
请根据下图所示网络结构回答下列问题。如果将10.10.67.128/25划分3个子网,其中第一个子网能容纳52台主机,另外两个子网分别能容纳23台主机,请写出第一和第3个子网掩码及可用的IP地址段。(注:请按子网顺序号分配网络地址)第一子网掩码:_
Youcanstretchyourlegsonthespaciousdecks,playgames,swimandenjoygoodfood—always______,ofcourse,thattheseais
最新回复
(
0
)