South Asian populations exhibit a lot of between population genetic distance, and not simply as a function of geography.
But this is an issue where I have fancied myself an outlier. My own background is moderately heterogeneous, and I’ve always explained to people that I’m not inbred like most South Asians, only half in jest (from what I can tell Muslims in the subcontinent have castes too, though they may somewhat different terminology). I know that my paternal grandmother came from a Brahmin family (clear by the customs preserved in the family even in her generation), while my maternal grandfather was almost certainly from a group with a Kayastha origin (going by surname, and who my mother actually clusters with). My maternal grandmother had considerable non-Bengali ancestry, which does show up in Middle Eastern signatures in my mother.
But this is talk. Am I truly not as inbred as the average brown? Using 23andMe data and methods from earlier posts, I can very quickly check this.
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View the original article here: Using your 23andMe data: how inbred are you?
