Scientists discovered a number of the most ancient pieces of DNA hiding in the darkest، most mysterious part of the modern human genome، as the Technical Times said.
These DNA are traced back to Neanderthals and a still unknown human ancestor، according to the findings that will be published in an upcoming issue of the journal eLife. Incredibly، these primitive DNA chunks may still be affecting human life at present.
The Dark Heart Of Chromosomes Plenty about the human genome remains a mystery، but its "heart" is a particular curiosity. In the center of chromosomes — the part that appears as a pinched-in waist، as a report from University of California، Davis described — are centromeres، which anchors the fibers pulling chromosomes apart during cell division. Centromeres are extremely important in understanding what happens when this process goes wrong and leads to cancer or genetic problems.
However، while centromeres are very important، they also contain plenty of repeating sequences، making the region nearly impossible to map properly. Scientists even call it the dark heart of the chromosome body.
"It's the heart of darkness of the genome، we warn students not to go there،" explained senior author Charles Langley، who is a professor of evolution and ecology at UC Davis.