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by ejain 4293 days ago
I'd be more intrigued if a service like 23andMe made such a claim...
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Just yesterday there was a story on HN about 23andMe where a guy discovered he had a half brother but 23andMe tagged him has potentially his grandfather.
Both of those pairs would share one-fourth of their genes; how would 23andMe be able to tell them apart, other than looking at their ages?