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E-P2 (PN2) unites Niger-Congo, Cushitic and Chadic speakers
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[QUOTE]Originally posted by Tukuler: [QB] [QUOTE]Originally posted by Tukuler: [qb] [QUOTE]Originally posted by Swenet: [i][URL=http://underline]Tracing one person's lineage back in time for a few generations in principle forms a binary tree[/URL] of parents, grandparents, great-grandparents and so on. However, the number of individuals in [URL=http://underline]such an ancestor tree grows exponentially[/URL] and very soon [URL=http://underline]exceeds the population from which the ancestors were drawn[/URL]. A human alive today would, over 30 generations (going back to about the High Middle Ages), have 230 or about 1.07 billion ancestors, more than the world population at the time.[/i] [/QUOTE]to continue the above Wiki (authorless quote) into its pertinence [i]Thus it is obvious that there is multiple counting and the individual is descended from some of these ancestors through more than one line: [URL=http://underline]pedigree collapse changes the binary tree to a [b]directed acyclic graph[/b][/URL].[/i] Obviously if only N people were alive then N+ ancestors are impossible for the time period. [/qb][/QUOTE]The point remains uniparentals show deep lineage for fathers fathers father way back into time and are very narrow slits compared to the wide berth of information obtainable from autosomes which have bits from all ancestors not just the 2 uniparentals indicate no matter which generation is chosen. I can't find it but I prepped an expo tree for 3 or 4 generations of a hypothetical AfrAm male illustrating the massive loss of African genetics if only his Euro male nrY and NativeAmer mtDNA were considered. His uniparentals would make him a mestizo whereas his autosomes clearly demostrated his "Africanity." Here is something similar, and more eye pleasing. In my chart BLUE gggrandaddy was Euro and RED ggnonna was NativeAmer and WHITE was the Afr ancestry hidden if relying solely on uniparentals. [IMG]http://i61.tinypic.com/sm3bys.gif[/IMG] [/QB][/QUOTE]
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