克隆英语

How are clones created?
• The most common process is to take DNA from one cell and put in a hollowed-out(挖 空的；掏空的) egg. Chemicals and electricity are then used to encourage the new DNA to fuse with(与…合并) the egg and develop into an embryo(胎儿). This technique is called nuclear transfer(核迁 移).
Other reasons
• The population will increase greatly.
• Some people will use the cloning people to start the war. • ……
• 2. The identity of the clones are difficult to be determined. • The relationship between the clones and people be cloned cannot be adopted to the existing ethical relations.
The advantages and disadvantages that cloning brings to us

Some fatal diseases can be cured with the application of cloning; The rate of success in organ transplant will be greatly improved; And the infertile couples are hopeful to have their own babies, etc. However, it may bring confusion and fear to us; It will threaten human society and dignity; and those clones may feel miserable if they are treated as organ donors instead of independent human beings.
• 4. From the angle of biodiversity, it is harmful to the existence of mankind. People may lose genetic diversity and the variability or may cause new virulence genes.

Should Humans be cloned?
• Although the possibility of cloning humans has been the subject of speculation for much of the twentieth century, scientists and policy makers began to take the prospect seriously in the 1960s. • When asked whether scientists should be able to clone human, 85% said no, 11% said yes.
Simplified Man's paternity Disrupted generational relation Individuals become isolated individuals Social network will become more complicated All of these will strongly threaten the traditional natural ethical relations、moral rules and political system.
• 3. The fuzzy、confusing and reversal ethics will lead to people’s psychological and emotional distortion. That sows the seeds of family tragedy, which also causes new social problems.
利颖怡
李瑞银
百度文库
蔡艳萍
卢银钿
邓海平
丘启成
冯春丽
What is cloning ?
• Cloning is the creation of cells
or whole animals using DNA from a single "parent", by passing the normal reproductive process. The clone has the same DNA to the parent.
Our opinion----
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The Reasons
• 1.The development of reproductive cloning technology may change people's reproductive way. We can see that from artificial insemination to test-tube embryos, to genetic engineering and now to cloning, humans’ reproduction becomes more like industrialization copy.