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
2016-03-04
19
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, 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 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 Missy-plicity 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 host animals.
B、Lack of available panda eggs.
C、Lack of funds.
D、Lack of qualified researchers.
答案
B
解析
此题是一道具体细节题。问题问按照克莱墨教授的意见,在克隆大熊猫的过程中的主要问题是什么。利用查阅式阅读法,根据第七段第一句,将一个物种的细胞移植到另外一个物种体内是件不容易的事,缺乏大熊猫的卵子可能会成为一个主要问题。因此,本题的正确答案应是B。
转载请注明原文地址:https://kaotiyun.com/show/MJPO777K
0
在职攻硕英语联考
相关试题推荐
Peoplecanbeaddictedtodifferentthings—e.g.alcohol,drugs,certainfoods,oreventelevision.Peoplewhohavesuchaddit
Peoplepreferpayinglargesumsofmoney______theirlifeworkdestroyedbygangsters.
Socialchangeismorelikelytooccurinsocietieswherethereisamixtureofdifferentkindsofpeoplethaninsocietieswhere
Inscience,atheoryisareasonableexplanationofobservedeventsthatarerelated.Atheoryofteninvolvesanimaginarymodel
Inscience,atheoryisareasonableexplanationofobservedeventsthatarerelated.Atheoryofteninvolvesanimaginarymodel
Acompleteinvestigationintotheaccidentshouldleadtoimprovedstandardsandshould______newoperatingprocedures.
AchainofshopsinEastYorkshire,Englandhasbeentoldthatitwouldbeacriminaloffencetosellthousandsoftubesoftoot
Iwouldrather______foraholidaythangiveupthisgoodopportunitytoattendtheconcert.
Internetshoppingisanewwayofshopping.Nowadays,youcanshopforjustaboutanythingfromyourarmchair.Allyouneedisa
Howmenfirstlearnttoinventwordsisunknown;inotherwords,theoriginoflanguageismystery.Allwereallyknowisthatm
随机试题
在教育工作中,对待避免失败者,不合适的方式是()
口咽通气管适用于()
患者男,40岁。发热伴皮肤黏膜出血2周。查体:贫血貌,胸骨压痛,肝肋下3cm,血常规检测:Hb70g/L,白细胞14×109/L,血小板40×109/L。骨髓象:骨髓增生明显活跃,原始细胞60%。应进一步做的检查是
刘女士近来头疼,昨天到药店咨询,店员推荐她服用布洛芬胶囊。刘女士买下后看着眼熟,拿回家一对照,果然跟家里的一盒极其相似,但后者是医生开给她,用于治疗关节炎。再仔细对比,两盒药的生产厂家、成份都一样,包装却不一样,药店里注明是OTC,医院却不是。更关键的是,
采用计算机替代手工记账的单位必须具备的基本条件是()。
2008年7月6日,甲与乙就乙提供中介服务达成口头协议。7月7日,甲向乙预付了款项。下列选项中正确的是( )。
根据下列文字资料回答问题。按照《广西北部湾经济区2008—2015年人才发展规划》预测,2010年广西北部湾经济区人才需求总量约为115万人,2015年将达到168万人,尤其在石化、林浆纸、能源、钢铁和铝加工、海洋产业、高新技术、物流和观代服务等
某人射击8枪,命中4枪,命中4枪中恰好有3枪连在一起的情况共有多少种?()
在古印度种姓制度中,平民被称为_______。
以下程序运行后,输出结果为______。main(){inta[2][3]={1,3,5,7,9,11},*s[2],**pp,*p:s[0]=a[0],s[1]=a[1];pp=s;p=(int*)mal
最新回复
(
0
)