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Genomic Ancestry of North Africans Supports Back-to-Africa Migrations Brenna M. Henn
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[QUOTE]Originally posted by Swenet: [QB] [QUOTE]Originally posted by Amun-Ra The Ultimate: 1) Nigerian and Kenyan populations are not the same than black African in North Africa. They have different SNP DNA values. They are more likely to have interacted other people in North Africa since they are geographically closer and are more likely to share DNA with them (among other thing). 2)Even if SNPs are *single* nucleotide polymorphism they still have different alleles values that's why we're making the study. The values correspond to the different nucleotides it could have (A, T, C or G). Obviously, there must be at least 2 different alleles values in a population to be considered an SNP. At a single site on the DNA strand people (a population) can have many different allele values depending on their ancestry (or mutation). In fact each person can even have 2 values at the same site (one in each chromosome passed from the mother and the father). This is from Wiki: [i]For example, two sequenced DNA fragments from different individuals, AAGCCTA to AAGCTTA, contain a difference in a single nucleotide. [b]In this case we say that there are two alleles.[/b] [/i] That's pretty basic, it's funny you don't understand that. You're the one making a fool out of yourself you will pardon me to say. 3) If you don't consider Ks "postulated ancestral populations" then I want to know what do you consider the Ks are? [/qb][/QUOTE]1) Either you're too dumb to realize that Bulala, Hausa and Fulani histories are historically culturally and genetically intertwined with Saharan populations, or you're just trying to save face. Neither of these populations originate at the latitude of Nigeria, and are, in fact, the very populations you falsely claim are undersampled in Henn et al 2012. The supposed drawbacks you attribute to Henn et all 2012 are figments of your own imagination. 2) Nucleotides aren't values and have nothing to do with values. You're just a troll on repeat, who just now realizes that SNPs aren't STRs, after I corrected you. Nucleotides aren't [i]groups[/i] of nucleotides, but rather, the constituents of STRs, and, as such, they, nor SNPs, can be assigned amounts/values. The longer you keep on dragging this retarded argument on, the more you're exposing your ignorance for everyone to see. 3) Ks are merely brackets to which distinct pieces of ancestry can be assigned membership, on the basis of [i]affinity[/i]. The more brackets scientists introduce to their analysis, the more room there will be for discrimination (hence, why more colors appear). This has nothing to do with populations, whatsoever. However, ancestral populations [i]can[/i] be inferred from Ks, but Ks are not ancestral populations in and of themselves. That's just retarded. [/QB][/QUOTE]
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