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Single nucleotide polymorphism (SNP)

A position in the genome where a single nucleotide varies between individuals. Consumer DTC genomic tests genotype hundreds of thousands of SNPs; SNP profiles are used in IGG because they can be compared across consumer databases in a way that CODIS STR profiles cannot.

Explained in

DTC Genealogy: The Golden State Killer Paradigm and GEDmatch Policy

Related terms

Barbara Rae-Venter Centimorgans (cM)CODIS ForenSeq Kintelligence GEDmatch Genetic genealogist Investigative genetic genealogy (IGG)Opt-in policy Parabon NanoLabs

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