As per a new study, it said that modern humans had inherited the genetic defences from the viral diseases which include hepatitis as well as influenza due to Neanderthals. The researchers said that this happened due to the sex between them which is about 50,000 years ago.
It has been said that the Neanderthals have disappeared from Earth under mysterious conditions around 40,000 years ago. But before they went extinct, they have interbred with another human species which is at that time beginning its spread. Due to this, modern-day Europeans, as well as Asians, have got about 2 per cent of Neanderthal DNA in the genomes.
The co-author of the study said that David Enard, PhD who is from the University of Arizona has explained that this Inverse about the interbreeding was like the quick antidote for the homo sapiens which help them to protect them. It is said that the genetic material was said to be pre-adapted from the Neanderthals as they have given the Homo sapiens a fast track route for the adaptation that shares Enard.
As per Dmitri Petrov, who is the professor at Stanford University in the US said that the research shows that this substantial number is about the frequency that occurs in Neanderthal DNA snippets as well as they are adaptive to the body in a very cool reason. Petrov added by saying that the genes of the Neanderthal can give us some protection which is against the viruses from our ancestors who all have encountered this while leaving Africa.
Thus things have made in such a way that the modern humans have to borrow it from the Neanderthals. Modern humans have not waited till their adaptive mutations to develop that will take much time.
The study was published in the journal Cell said that they are consistent with the poison-antidote model. This is due to the gene swapping which is between the two species. Researchers believe that the sex unicorns have produced this antidote.
But now it has been seen that these genes are not protecting us any longer from modern viruses. This shows that there is a continuous evolution in an arms race. It has been seen that even if some manage to overcome with it, there are many other viruses which are constantly rising to attack us. The study also said that modern humans had got depression as well as an addiction to a cigarette from the Neanderthals.