Only 7 percent. The human genome is unique to our species. Most of our genes correspond to the genetic code of Neanderthals, Denisovans (a species of hominid discovered several years ago in the Denisov Cave in the Altai Mountains) and other human ancestors.
- Only 1.5 to 7 percent. According to the latest research, the human genetic code is unique to our species
- Neanderthals, Denisovans, and other Homo sapiens ancestors had many of the same genes we have today.
- The unique genes of rational humans play a role in the process of brain development, which may be what defines our species
- More such information can be found on the home page of Onet.pl
More than 90 percent of the human genotype is similar to genes, among other things Neanderthals. As it turns out, a small percentage of the genetic code is unique to the rational human race, It has to do with human brain function and social skills such as communication.
People like to think they are special. Our genetic code indicates otherwise. Only 7 percent. The human genetic code is unique to the species Homo sapiens, according to the latest research, the results of which are described in the scientific journal Science Advances.
Remaining part It matches the genes of human ancestors called humans, in another meaning. Neanderthals or Denisovans.
“The evolutionary tree shows that part of the genotype of the human species determines our uniqueness,” says Richard Green, director of the Paleogenetics Laboratory at the University of California, Santa Cruz, and co-author of the study, in an interview with Insider. . “We’ve now been able to classify it. It’s a surprisingly small part of the genome.”
Anthropologists already knew that our human ancestors interacted and crossed. In fact There was an exchange of genes and stone processing techniques, which changed the course of the evolution of our species. The latest findings add to the answer as to how often gene shuffling has occurred in the last 300,000 jobs. years, that is, from the moment the first society of Homo sapiens appeared.
“Wherever we look primarily, batter is no exception, it’s the rule,” Green explains.
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Our ancestors interbred with hominins
To reconstruct the family tree of hominins (a family of bipedal primates), Greene’s team compared the genotypes of 279 modern humans from around the world with those of Denisovans and two Neanderthals. Then the scientists used it A computer algorithm to determine the degree of kinship between individuals.
This analytical tool, which took years to develop, has helped researchers determine which parts of the human genome are unadulterated, and whether they were likely to be found in Neanderthals or Denisovans.
The algorithm showed which genes people inherited from their oldest ancestors, who lived about 500,000 years ago.. It is believed to be the ancestor of Homo sapiens, Neanderthals, and other types of human ancestors.
The results of the research indicate that we still have not discovered all types of human ancestors, whose representatives could interbreed with Neanderthals or Denisovs, before the interactions between Neanderthals and thinking people, for example.
Genes unique to humans are linked to brain function
Scientists had previously identified several human genes resulting from interspecies experiences. Featured in “Science Advances” The study is the first experiment to identify regions of the genotype completely devoid of gene clusters also found in other ancestors of Homo sapiens Green explains.
His research team found that these unique human regions of our genome were “extraordinarily rich in genes related to neuronal development”.
Although the Neanderthal skull was similar to or slightly larger than that of Homo sapiens, the sheer size of this bone structure tells us little about the functioning of the Neanderthal brain compared to a rational Homo.
“We now know that genes unique to humans are linked to how the brain worksGreen adds.
Most of these unique genes emerged during two distinct dawns of evolution. One was 600,000 and the second 200,000. Years ago – the study authors explain. One of these evolutionary waves may have laid the genetic basis for the development of humans’ ability to communicate Green said.
Translation: Adam Hughes
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