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
2023-10-13
77
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/3094341.html
相关试题推荐
Thenumbersontherightareformedfromthenumbersontheleftusingthesame
Fillinthemissingnumbersinthissequence:15873×7=11111115873×14=222222
Nottoomanydecadesagoitseemed"obvious"bothtothegeneralpublicand
Nottoomanydecadesagoitseemed"obvious"bothtothegeneralpublicand
Nottoomanydecadesagoitseemed"obvious"bothtothegeneralpublicand
Nottoomanydecadesagoitseemed"obvious"bothtothegeneralpublicand
Nottoomanydecadesagoitseemed"obvious"bothtothegeneralpublicand
Nottoomanydecadesagoitseemed"obvious"bothtothegeneralpublicand
Nottoomanydecadesagoitseemed"obvious"bothtothegeneralpublicand
Nottoomanydecadesagoitseemed"obvious"bothtothegeneralpublicand
随机试题
Geneticengineering(GE)offoodisariskprocess.Current【M1】______understandi
A、Themanwillgoalone.B、Thewomanwillgohome.C、Theywillgotogether.D、Th
Togetachocolateoutofaboxdemandsaconsiderableamountofunpacking:
Althoughhefailedinthemathstest,itwaswrongto______athisefforts.A、gi
[originaltext]W:I’mgladthattoday’sphysicsclassisover.Whatdidyouthin
用克拉默法则解方程组
不发生液化性坏死的是()。A.肺 B.肾 C.阑尾 D.小肠 E.脑
下列各项关于土地使用权会计处理的表述中,正确的有( )。A.企业购入用于建造自
Theengineerrecommendedthatanewgas
钢材、木材等货物适合()方式。A.垛堆 B.成组 C.货架 D.散堆
最新回复
(
0
)