Archaeologists were able to detect DNA of our ancestors in sedimentary rocks
Source:
During the excavations it is often possible to find pieces of dishes and other kitchen utensils, weapons and items of tableware, but the remains are not so simple. To find the whole skeleton or at least a sufficient number of fragments is much harder. Therefore, to study the DNA of ancient people is not always obtained. To solve the problem, German researchers began to search for new ways of detecting DNA, and I must say .
The Scientists decided to find out whether DNA preserved in sediments found in the archaeological sites. For the experiment, they collected samples on the excavation of sites of ancient people, found in France, Croatia, Spain and Russia, resulting in their possession of the samples aged from 14 000 to 500 000 years.
Further study of microscopic particle has helped to identify and fix fragments of mitochondrial DNA, which were then analyzed. Found out that the fragments belong to the twelve families of mammals, including mammoths, cave hyenas and a number of animals. Eight samples belonged to Neanderthals, and one was close to Denisova.
The Method is good because the sediment does not need to be stored in certain conditions, so they may keep inside DNA even at room temperature. Therefore, scientists have carried out a detailed study of a new method of detecting DNA in the rocks, to then be able to apply it everywhere on the excavation.
Recommended
Can genes create the perfect diet for you?
Diet on genotype can be a way out for many, but it still has a lot of questions Don't know what to do to lose weight? DNA tests promise to help you with this. They will be able to develop the most individual diet, because for this they will use the m...
How many extraterrestrial civilizations can exist nearby?
If aliens exist, why don't we "hear" them? In the 12th episode of Cosmos, which aired on December 14, 1980, co-author and host Carl Sagan introduced viewers to the same equation of astronomer Frank Drake. Using it, he calculated the potential number ...
Why does the most poisonous plant in the world cause severe pain?
The pain caused to humans by the Gimpi-gympie plant can drive him crazy Many people consider Australia a very dangerous place full of poisonous creatures. And this is a perfectly correct idea, because this continent literally wants to kill everyone w...
Related News
Found a method of producing hydrogen fuel with a quantum efficiency above 100%
investigate the possibilities of reducing the dependence of human civilization from fossil fuels are in progress in several promising directions. Scientists in particular have focused their efforts on finding a more effective meth...
The holding company shvabe is developing a new generation of fiber
As stated by the press service of the state Corporation «rostec» holding «Schwabe» together with the specialists of Volga state University of telecommunications and Informatics (PHUTI) in the framework of enhan...
NASA has developed the concept of suspended lunar greenhouse
for a long time to live and work on the moon or Mars, you need to eat well. A healthy diet is unthinkable without fruit, vegetables and herbs, so the problem with growing food is to scientists almost as urgent as the establishment...
DARPA looking for way to speed up the process of learning
If the brain is a common set of biological "wires" and "circuits", why not just upgrade its components to make us better and smarter? At least this is the theory behind a new project, the secret research Department of the advanced...
For brain development, immunity and memory respond to the same genes
Previously it was thought that in the brain and is its own immune cells, are separated from the rest of the body the blood-brain barrier. Thus cells of the brain and immune system develop under the influence of factors unrelated t...
NASA and ESA will hold a joint landing on a moon of Jupiter
Recent discoveries in space at the same time simplified the search for life beyond Earth, and at the same time its complicated. The more we find exoplanets and their satellites, have the potential to support extraterrestrial life,...
Chinese engineers proposed to build an underwater Hyperloop
Preliminary calculations conducted by the Institute of railway transport of China, showed that the construction of the submarine branch of the vacuum tunnel by the principle Hyperloop — quite feasible for the Chinese experts...
The Chinese government founded the centre for development of commercial space technologies
China continues to develop its space industry, steadily catching up with other countries in different directions. Slowly but surely moving to create its own space station, the core of which will be launched next year, is developin...
Scientists have created an artificial womb for premature babies
the problem of supporting the life and the full development of premature babies is very relevant today. Is considered a premature baby, born at 37-38 weeks earlier and having a body weight less than 2.5 kg. Born every year prematu...
10 cases, when the planet was on the brink of Apocalypse
Until mankind came out unscathed. Given how much we've been lucky so far, it becomes strange why we haven't found life elsewhere in the Universe. However, there were many cases when the human race was almost at the brink of doomsd...
The cells of the immune system help in the contraction of the heart muscle
it would Seem that anatomy and physiology — science, which are open to virtually all. Nevertheless scientists from around the world continue to make amazing discoveries. For example, recently a group of researchers from Mass...
Can genes be responsible for our food preferences?
has Long been known that all of our characteristics, both good and bad (like disease), developing due to genetically information. But until now it was unclear whether genetics influences on our habits, including eating behavior. W...
Physicists say they have found a way to define a naked singularity
Black holes. Insanely dense cosmic objects with such powerful gravity that it bends space-time, and our current laws of physics, eventually creating a singularity. Fortunately, the universe protects us from these objects, creating...
Most jizneopisanie exoplanets are likely to be water worlds
More than 70 percent of our planet's surface is covered by water. To some this may seem excessive, but a new study makes a supposition that our world is in this respect a truly unique and unique as you would think. The fact that t...
China began testing a competitor's Airbus A320 aircraft of its own production
the Comac C919 Aircraft is developed by Chinese company, Commercial Aircraft Corporation of China in 2009. This uzkofjuzeljazhnyh the aircraft is 168 seats, but in the future engineers plan to develop other models based on it, wit...
Suddenly: why lions-cannibals prefer people food?
In 1898 the attempt of the British to build a railway bridge across the gorge in Tsavo, Kenya, ended in a fiasco when a pair of lions began to catch working one… eat them. Obviously, workers who have not eaten, was not happy...
Scientists are faced with an unknown atmospheric phenomenon
Meet "Steve" recently detected an unknown atmospheric phenomenon. It is so unusual, that still has no official scientific explanation. Here, incidentally, is apparently an unusual name. Thanks to the continuous work conducted over...
Over the past 10 years, due to the method of so-called deep learning, we have the best artificial intelligence system — for example, speech recognizers on smartphones or the latest automatic translator Google. Deep learning, in fa...
Scientists found out why the AI might be racist and sexist
the Failed experiment of Microsoft, with its AI algorithm Tay (Tay), who within 24 hours after the beginning of interaction with people from Twitter has turned into a hardened racist, showed that the newly emerging AI systems can ...
SETI: aliens don't make contact, but we'll still find
Some researchers from the Institute for the search for extraterrestrial intelligence (SETI) believe that the best way of detecting aliens is scanning the cosmos and the search for laser beams. In one of the last major studies of t...
Comments (0)
This article has no comment, be the first!