cloning technology is no longer a new term. As early as the beginning of the last century, cloning technology was born. Simply put, the core of cloning technology is that we can cultivate the cells of a living body to achieve the purpose of replicating the entire living body. This is completely different from the traditional reproduction. The cloning technology only needs to cultivate cells and clones the living organisms without mating.
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cloned sheep “Dolly”
Many kinds of animals have been cloned in history. Among them, the most concerned is cloned sheep Dolly. The cloning process is very simple. Scientists take out the DNA of one ewe and then inject it into other ewes. Then, the artificially conceived ewe directly bred a lamb exactly like the ewe who provided the DNA. Moreover, this lamb is not only the same in appearance, but also identical in genetics. This is the magic of cloning technology.
Of course, although this process seems quite simple, in fact, its operation difficulty is not as simple as we thought. And, because the technology is immature, Dolly's growth has become more and more worrying. Not long after Dolly was born, she suffered from arthritis. More unfortunately, Dolly contracted lung cancer and eventually died of the pain.
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Why are cloned sheep rarely mentioned now?
As mentioned above, the cloning technology at the time was not yet mature, so when Dolly was cloned, she died soon after. Therefore, scientists began to study this technology with great concentration, and naturally they would not announce relevant research progress until the technology matured. Dolly died 20 years ago. During this period, there was no more sensational cloning incident. Gradually, people forgot to clone sheep.
Of course, to this day, cloning technology has made great progress. Just last year, scientists successfully cloned a cute kitten. So far, the vital signs of this kitten are relatively stable. In this cloning experiment, the scientists adopted more advanced and mature cloning technology, so that the kitten's life span can reach a relatively high level.
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Now that we have a much more mature cloning technology than before, there is no need to worry about the misfortune that happened to Dolly again. Of course, some people questioned this technology. They believed that this technology not only violates traditional ethics and morals, but may even be used by criminals as a tool to disrupt social stability. Therefore, cloning technology is anti-human, we should not develop this technology, but should completely prohibit the development of cloning technology!
Actually, these people's worries have certain practical significance. However, in the eyes of many people, although this worry is excusable, it is too narrow-minded from a negative perspective. Because, in the future, we can use this technology to solve many social and resource problems. From this perspective, cloning technology does have a greater positive effect. Perhaps in the near future, people will be able to feel the positive changes brought about by cloning technology.
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