the Identical Ancestors Point for all humans would be surprisingly recent, on the order of 5,000-15,000 years ago. Ralph and Coop (2013), considering the European population and working from genetics, came to similar conclusions for the recent common ancestry of Europeans. All living people share exactly the same set of ancestors before the Identical Ancestors Point, all the way to the very first single-celled organism. However, people will vary widely in how much ancestry and genes they inherit from each ancestor, which will cause them to have very different genotypes and phenotypes. This is illustrated in the 2003 simulation as follows: considering the ancestral populations alive at 5000 BC, close to the ACA point, a modern-day Japanese person will get 88.4% of their ancestry from Japan, and most of the remainder from China or Korea, with only 0.00049% traced to Norway; conversely, a modern-day Norwegian will get over 92% of their ancestry from Norway (or over 96% from Scandinavia) and only 0.00044% from Japan. Thus, even though the Norwegian and Japanese person share the same set of ancestors, these ancestors appear in their family tree in dramatically different proportions. A Japanese person in 5000 BC with present-day descendants will likely appear trillions of times in a modern-day Japanese person's family tree, but might appear only one time in a Norwegian person's family tree. A 5000 BC Norwegian person will similarly appear far more times in a typical Norwegian person's family tree than they will appear in a Japanese person's family tree. See also Coefficient of relationship Genealogical DNA test Genealogy Genetic distance Genetic genealogy Last universal ancestor Most recent common ancestor Pedigree collapse Phylogenetic tree Recent African origin The Ancestors Tale References External links Identical ancestors point - explaining the relationship of "most recent common ancestor" and "identical ancestors point" Genealogy Genetic genealogy Human evolution Family history Last common ancestors