United States Hollywood movie "Jurassic Park" has created a bold vision of Science: a mosquito drew dinosaur blood, happened to be amber perfect saved to today, scientists have therefore gets the dinosaur DNA, depicts the dinosaur era. Then boldly imagine, we can not let a person standing on the West front of us?: Biomedical experts recently conducted a little-known and interesting attempt to show that this possibility will be superb technology also cleverly combined with nature. However, Southern Medical University of Wang Lin Tao teacher told reporters: "in a Lianyungang female corpse, we have not been able to extract out her complete DNA. And this is the ancients ' Resurrection ' of the most basic conditions. ”
Lianyungang Millennium Mummy shocked the world
If you have the impression that you should remember to Lianyungang has uncovered an ancient corpses of Western Han dynasty era. Chinese archaeologists in early July 2002, in Jiangsu Lianyungang city found a well-preserved Han dynasty female corpse. This immersion in the coffin of mummy is the first time North of the Yangtse river found dead in the wet, and further to the Hunan Changsha Mawangdui Han grave Jingzhou, Hubei, China again found well-preserved ancient corpses in the Han dynasty. This tool has more than 2000 years of mummy skin intact, muscles are flexible. Archaeologists unearthed turtle button under copper printing impressions "ling's Huiping", with the Han dynasty female corpse identified this surname name Huiping Ling. Save so good mummy is rare, but it also makes expert quite interested. If you extract the complete DNA, we will be able to know the person's genetic information, to the future of research including the reappearance of the ancients offers a range of biological basis. However, the body after thousands of years of evolution, but also can save the basic shape is a miracle, the DNA is present, the full extent will be difficult to predict.
Extract the Mummy DNA results unsatisfactory
Last year, after obtaining specimens of ancient corpses, Nanjing related biologists are very excited to begin extracting the DNA of the Mummy. However disappointing is that despite a series of extraction methods, have not been able to achieve an ideal result. By electron microscopy, Mummy's internal cell organization has also been a mess. "The original idea was to understand the ancients in the DNA level of basic information, to further explore his life characteristics do try. "The experimental results confirmed that:" the Mummy specimen cell disintegration of stratified disappear, ultrastructure damaged. "According to the reports of the formalin, mummy is stationary liquid, adding a number of substances in the preparation of mixed anticorrosive liquid to achieve preservation, bacteria and moulds, softening, color unchanged. Experts speculate that this experiment will also give them a huge reverie space, the mummy is in antiseptic solution saved a couple of years, if the body is just unearthed by studies on whether to get a good result?
There are two methods you can try
"Jurassic Park" exhibition, Mr. Wang is in College, he told reporters that the science fiction film scientific theory is wonderful, but has some scientific basis. But if you want to make the ancients in the now "resurrection", with the exception of cloning technology, human beings also cannot find like movies that coincidences: by accident found the ancient people's blood and DNA.
Wang Lin Tao teacher told reporters that from now on, after thousands of years of erosion, the ancient DNA is not stable, degrade; second, the mummy discovered, is formalin immersion has up to five years, this may also result in chromosome DNA degradation. Experts told reporters, even modern DNA in laboratory operations, the use of minus 20 degrees temperature cryopreservation, effective time but only one or two years. Now you can only hope that the ancient people have a special, humanity has not understood method to preserve the body, to present scientific research also provides some reverie space. But from the scientific point of view, is not very optimistic.
Although this result is not ideal, but it does not mean that the study of this end. Wang told reporters that there are two methods you can try. First is the future, if you run into any excavation Mummy, biologists also arrived at the scene, to carry out experiments in the first instance, the extraction of samples. In addition, by extracting the DNA in the dead teeth also is a try.
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