首页
登录
职称英语
"Successful cloning of an increasing number of species confirms the general impr
"Successful cloning of an increasing number of species confirms the general impr
游客
2024-08-07
10
管理
问题
"Successful cloning of an increasing number of species confirms the general impression that it would be possible to clone any mammalian species, including humans," said Ian Wilmut, a reproductive biologist at the University of Edinburgh who produced the first cloned mammal, Dolly the sheep, from an adult cell nearly a decade ago. Researchers have since cloned cats, goats, cows, mice, pigs, rabbits, horses, deer, mules and gaur, a large wild ox of Southeast Asia. So far, efforts to clone a monkey or another primate with the same techniques have failed. Uncertainties about the health and life span of cloned animals persist: Dolly died prematurely in 2003 after developing cancer and arthritis.
选项
答案
爱丁堡大学生殖生物学家伊恩·维尔莫特称:“越来越多的物种被成功克隆使人们确信:所有哺乳动物,包括人类本身,都是可能被克隆的。”维尔莫特是第一个克隆哺乳动物的科学家,大约10年前他成功利用成体细胞克隆了绵羊多莉。此后研究人员相继克隆了猫、山羊、牛、老鼠、猪、免予、马、鹿、骡及白肢野牛(东南亚地区一种大野牛)。但迄今为止,用同样方法克隆猴子或其他灵长类动物的尝试均告失败。克隆动物的健康状况及寿命也仍然存在不确定性:绵羊多莉2003年就因患癌症及关节炎夭亡。
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3708959.html
相关试题推荐
Findfiveconsecutivenumbersbelowthattotal22.739641379354176593541(从这一列数中挑
Whichnumbershouldcomenextinthisseries?25,24,22,19,15,?[img]2012q2/c
Whichnumberismissingfromthethirdcircle?[img]2011q4/ct_eyyjsbz2007_eyyjsb
Whichtwonumbersshouldreplacethequestionmarksbelow?19,20,21,?,?,26
[img]2012q2/ct_eyyjsbz2009b_eyyjsbiq_0340_20124[/img]Workoutwhichnumberfits
Eachnumberisthesumoftheprevioustwonumbers.Whatwerethefirsttwonumb
Whichnumbershouldcomenextinthisseries?3,5,8,13,21,?34从第三个数字开始,每个数字是
Afterwitnessinganumberofterritorialskirmishes,Dr.Jarmenhadtochangehi
Themid-and-late19thcenturyisgenerallyknownastheVictorianage,contro
Themid-and-late19thcenturyisgenerallyknownastheVictorianage,contro
随机试题
ThreeConceptsinArtHistoryI.Commonalities-Certainchunkof【T1】_____,【T1】_
Overpopulationhasbeenanissuefacedbymanycountries.Describesome
Historianstendtotellthesamejokewhentheyaredescribinghistoryeduca
你认为应如何促进少数民族地区的发展?【学科知识】
作为理财规划师,你认为()方式可以完全打消当事人关于财产分配方面的顾虑。A:信托
36.从()到(),在全面建成小康社会的基础上,再奋斗十五年,基本实现社会主
某施工单位为保证报警阀组及其附件的安装质量和基本性能要求,对到场的报警阀组进行安
某公司出口一批速冻蔬菜(检验检疫类别是P.R/Q.S),对装裁该批货物的集装
下列关于现场签证的描述中,正确的是( )。A.招标工程量清单中已有,但施工中发
国际工程投标总报价组成中,应计入现场管理的有( )。A.差旅交通费 B.临时
最新回复
(
0
)