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Since the first cloned sheep, Dolly, was born in 1997, scientists have made some great achievements in cloning. More and more animals have been cloned and their products have been available in markets. When this technology is more mature, human cloning will change scientific fiction into scientific reality. Some people even think that human clones have already existed.
Human cloning has been a very controversial topic for a decade. Some countries have laws which prohibit human cloning and any research related to it. In other countries, there is no such kind of law. I think that human cloning is a crazy idea.
That will cause some moral and ethic dilemmas. How should we define the relationship between the cloned child and the originator? They are sibling or child-parent. In current society, any child has a biological mother and father even though some have to live in a single parent family. A cloned child is unlikely get such complete parenthood care. The basic concept of a family is that a couple falls in love and determines to care for each other. Then the natural pregnancy is not just a physical process, but also a process full of love. But parents of clones might lack experience of this kind of emotion. It is ridiculous that reproduction is separated from love and human relationship
Humans who can live on the Earth rely on the diversity of genes. And the diversity of genes comes from parents having different sets of genes. The most horrendous part of identical genes is that it will weaken our power and adaptations, which make us prone to diseases. In addition, human cloning is just copying the identical genes, which means it will decrease the diversity of genes. Furthermore, the beauty of humanity lies in the differences we see in each other. Cloning would eliminate surprise and predict expectancy.
In human cloning, all human beings will be identical, which means that the entire human race is at a risk of getting infected by the same type of pathogen. From the scientific point of view, if everyone has the same type of genes and they are closed to each other they may not defend against the same kind of serious disease. Then cloning will be detrimental in terms of a great disaster.
Another negative effect of cloning is inbreeding, as everyone has the same genotype and keep reproducing among themselves. This would finally lead us to our own extinction.
If Reproductive cloning is abused by someone, that would carry some risks for the whole world even though I don’t believe you can create another Hitler by copying his gene because the thought and personalities cannot be cloned based on current technology. The risks may lie from manipulations by their creators.
All in all, we can benefit a lot from cloning technology. But as far as human cloning is concerned, I think we’d better to be very cautious. We need to consider the solutions for the issues before we can allow it to be done.