is there some sort of cutoff point where scientists decided “everyone in Ireland 100,000 years ago will be considered 100% Irish”?
In: 12
AA Vale is right, of course but you are not correct in looking for any 100% matches as no human except identical twins (or other homozygous individuals) are 100.000% identical. As you know, we share an amazing proportion of genes with snails but there are as many dissimilarities between your DNA and an African person of the same gender as you as there are between you and your next door neighbours.
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