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Does a Y-Chromosome match prove a relationship between two people?

April 26, 2017people prove relationship Y-chromosome

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Does a Y-Chromosome match prove a relationship between two people?

3 Answers

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Although no evidence is ever certain, the confidence level for such a match is very high. Typically there is less than one chance in 1,000 that a demonstrated relationship is in error if 12 of 12 markers (DYS loci) match.

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Although no evidence is ever absolutely certain, the confidence level for such a match is very high. Typically, there is less than one chance in a 1,000 that the demonstrated relationship is in error if 12 of 12 markers (DYS loci) match.

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Although no evidence is ever absolutely certain, the confidence level for such a match is very high. Typically, there is less than one chance in a 1,000,000 (one in a million) that the demonstrated relationship is in error if 25 of 25 markers (DYS loci) match.