1、克隆（cloning）的定义是？A．建立有性繁殖系B．建立杂交新品系C．建立无性繁殖系D．分离新型细胞群
1、克隆（cloning）的定义是？
A．建立有性繁殖系
B．建立杂交新品系
C．建立无性繁殖系
D．分离新型细胞群
参考答案和解析
建立无性繁殖系
相关考题：
Which of the following best represents Mr.Westhusin’s attitude toward cloning?［A］ Animal cloning is a stupid attempt.［B］ Human cloning is not yet close to getting it worked out.［C］ Cloning is too inefficient and should be stopped.［D］ Animals cloning yes, and human cloning at least not now.
We can infer from the third paragraph that .［A］ rich people are more interested in cloning humans than animals［B］ cloning of animal pets is becoming a prosperous industry［C］ there is no distinction between a cloned and a natural dog［D］ Missy’s master pays a lot in a hope to revive the dog
We may conclude from the text that .［A］ human cloning will not succeed unless the technique is more efficient［B］ scientists are optimistic about cloning technique［C］ many people are against the idea of human cloning［D］ cloned animals are more favored by owners even if they are weaker
Directions: For this part, you are allowed 30 minutes to write a composition titled To Clone Or Not to Clone. You should write at least 120 words following the outline given below in Chinese.1. 对人进行克隆(Human Cloning)是一个具有争议的话题;2. 有人认为克隆技术应该用来满足人类的一切需求;另一些人认为克隆人类是违反自然规律的，应该禁止。3. 你对克隆人类的看法。
(作文)1.对人进行克隆(Human Cloning)是一个具有争议的话题;2.有人认为克隆技术应该用来满足人类的一切需求;另一些人认为克隆人类是违反自然规律的，应该禁止。3.你对克隆人类的看法。
WhichofthefollowingtechnologiescanbeusedasameanstoisolateahostOSfromsometypesofsecuritythreats?() A.IntrusiondetectionB.VirtualizationC.KitingD.Cloning
共用题干Cloning（克隆）:Future Perlect?1 A clone is an exact copy of a plant or animal produced from any one cell.Since Scottish scientists reported that they had managed to clone a sheep named Dolly in 1997,research into cloning has grown rapidly.In May 1998,scientists in Massachusetts managed to create two identical calves（牛犊）using cloning technology. A mouse has also been cloned successfully.But the debate over cloning humans really started when Chicago physicist Richard Seed made a surprising announcement:"We will have managed to clone a human being within the next two years."he told the world.2 Seed's announcement provoked a lot of media attention,most of it negative,In Europe, nineteen nations have already signed an agreement banning human cloning and in the U.S. the President announced:"We will be introducing a law to ban all human cloning and many states in the U. S. will have passed anti-cloning laws by the end of the year."3 Many researchers are not so negative about cloning.They are worried that laws banning human cloning will threaten important research.In March,The New England Journal of Medicine called any plan to ban research on cloning humans seriously mistaken.Many researchers also believe that in spite of attempts to ban it,human cloning will have become routine by 2010 because it is impossible to stop the progress of science.4 Is there reason to fear that cloning will lead to a nightmare world?The public has been bombarded（轰炸）with newspaper articles, television shows and films, as well as cartoons.Such information is often misleading,and makes people wonder what on earth the scientists will be doing next.5 Within the next five to ten years scientists will probably have found a way of cloning humans.It could be that pretty soon we will be able to choose the person that we want our child to look like,But how would it feel to be a clone among hundreds,the anti-cloners ask. Pretty cool, answer the pro-cloners（赞成克隆的人）.Within ten years scientists wil!probably have_______.A:the nucleus of a cellB:cloned human beingsC:a human being in two yearsD:a law to ban human cloningE:a report on human cloningF:heavy media coverage
共用题干Cloning（克隆）:Future Perlect?1 A clone is an exact copy of a plant or animal produced from any one cell.Since Scottish scientists reported that they had managed to clone a sheep named Dolly in 1997,research into cloning has grown rapidly.In May 1998,scientists in Massachusetts managed to create two identical calves（牛犊）using cloning technology. A mouse has also been cloned successfully.But the debate over cloning humans really started when Chicago physicist Richard Seed made a surprising announcement:"We will have managed to clone a human being within the next two years."he told the world.2 Seed's announcement provoked a lot of media attention,most of it negative,In Europe, nineteen nations have already signed an agreement banning human cloning and in the U.S. the President announced:"We will be introducing a law to ban all human cloning and many states in the U. S. will have passed anti-cloning laws by the end of the year."3 Many researchers are not so negative about cloning.They are worried that laws banning human cloning will threaten important research.In March,The New England Journal of Medicine called any plan to ban research on cloning humans seriously mistaken.Many researchers also believe that in spite of attempts to ban it,human cloning will have become routine by 2010 because it is impossible to stop the progress of science.4 Is there reason to fear that cloning will lead to a nightmare world?The public has been bombarded（轰炸）with newspaper articles, television shows and films, as well as cartoons.Such information is often misleading,and makes people wonder what on earth the scientists will be doing next.5 Within the next five to ten years scientists will probably have found a way of cloning humans.It could be that pretty soon we will be able to choose the person that we want our child to look like,But how would it feel to be a clone among hundreds,the anti-cloners ask. Pretty cool, answer the pro-cloners（赞成克隆的人）.Paragraph 2________A:Strong reactionsB:Anxiety about the future if cloningC:The right to chooseD:What id cloning?E:Arguments in favor of cloningF:A common sight
共用题干Cloning（克隆）:Future Perlect?1 A clone is an exact copy of a plant or animal produced from any one cell.Since Scottish scientists reported that they had managed to clone a sheep named Dolly in 1997,research into cloning has grown rapidly.In May 1998,scientists in Massachusetts managed to create two identical calves（牛犊）using cloning technology. A mouse has also been cloned successfully.But the debate over cloning humans really started when Chicago physicist Richard Seed made a surprising announcement:"We will have managed to clone a human being within the next two years."he told the world.2 Seed's announcement provoked a lot of media attention,most of it negative,In Europe, nineteen nations have already signed an agreement banning human cloning and in the U.S. the President announced:"We will be introducing a law to ban all human cloning and many states in the U. S. will have passed anti-cloning laws by the end of the year."3 Many researchers are not so negative about cloning.They are worried that laws banning human cloning will threaten important research.In March,The New England Journal of Medicine called any plan to ban research on cloning humans seriously mistaken.Many researchers also believe that in spite of attempts to ban it,human cloning will have become routine by 2010 because it is impossible to stop the progress of science.4 Is there reason to fear that cloning will lead to a nightmare world?The public has been bombarded（轰炸）with newspaper articles, television shows and films, as well as cartoons.Such information is often misleading,and makes people wonder what on earth the scientists will be doing next.5 Within the next five to ten years scientists will probably have found a way of cloning humans.It could be that pretty soon we will be able to choose the person that we want our child to look like,But how would it feel to be a clone among hundreds,the anti-cloners ask. Pretty cool, answer the pro-cloners（赞成克隆的人）.Paragraph 1________A:Strong reactionsB:Anxiety about the future if cloningC:The right to chooseD:What id cloning?E:Arguments in favor of cloningF:A common sight
共用题干Cloning（克隆）:Future Pertect?1 A clone is an exact copy of a plant or animal produced from any one cell.Since Scottish scientists reported that they had managed to clone a sheep named Dolly in 1997,research into cloning has grown rapidly.In May 1998,scientists in Massachusetts managed to create two identical calves（牛犊）using cloning technology. A mouse has also been cloned successfully.But the debate over cloning humans really started when Chicago physicist Richard Seed made a surprising announcement:"We will have managed to clonen a human being within the next two years."he told the world.2 Seed's announcement provoked a lot of media attention,most of it negative.In Europe, nineteen nations have already signed an agreement banning human cloning and in the U.S. the President announced:"We will be introducing a law to ban all human cloning and many states in the U.S. will have passed anti-cloning laws by the end of the year."3 Many researchers are not so negative about cloning.They are worried that laws banning human cloning will threaten important research.In March,The New England Joumal of Medicine called any plan to ban research on cloning humans seriously mistaken.Many researchers also believe that in spite of attempts to ban it,human cloning will have become routine by 2010 because it is impossible to stop the progress of science.4 Is there reason to fear that cloning will lead to a nightmare world?The public has been bombarded（轰炸）with newspaper articles , television shows and films , as well as cartoons.Such information is often misleading,and makes people wonder what on earth the scientists will be doing next.5 Within the next five to ten years scientists will probably have found a way of cioning humans.It could be that pretty soon we will be able to choose the person that we want our child to look like.But how would it feel to be a clone among hundreds,the anti-cloners ask. Pretty cool , answer the pro-cloners（赞成克隆的人）. Within ten years scientists will probably have______.A:the nucleus of a cellB:cloned human beingsC:a human being in two yearsD:a law to ban human cloningE:a report on human cloningF:heavy media coverage
下列关于虚拟机克隆的描述中，错误的是（）A、克隆虚拟机是部署虚拟机的另一种方式B、克隆就是虚拟机的一个精确副本C、被克隆的虚拟机可处于开启状态，也可处于关闭状态D、为防止发生软件和网络冲突，不建议自定义克隆的客户操作系统
在Photo-Paint中定义克隆源的方法是？（）A、按住Alt单击鼠标左键进行定义克隆源B、按住Ctrl单击鼠标左键进行定义克隆源C、按住Shift单击鼠标左键进行定义克隆源D、使用鼠标右键单击可获得克隆源
菌落与克隆菌落指单个细胞在有限空间中发展成肉眼可见的（）。cloning指从同一祖先产生同一DNA（目的基因）分子群体或细胞群体的（）。或指将外源基因引入到宿主菌体内，并使其大量扩增的（）。
单选题下列关于虚拟机克隆的描述中，错误的是（）A克隆虚拟机是部署虚拟机的另一种方式B克隆就是虚拟机的一个精确副本C被克隆的虚拟机可处于开启状态，也可处于关闭状态D为防止发生软件和网络冲突，不建议自定义克隆的客户操作系统
单选题在Photo-Paint中定义克隆源的方法是？（）A按住Alt单击鼠标左键进行定义克隆源B按住Ctrl单击鼠标左键进行定义克隆源C按住Shift单击鼠标左键进行定义克隆源D使用鼠标右键单击可获得克隆源
名词解释题克隆（cloning）