Littles Little DNA Project

DNA for Genealogy

What is DNA?

Autosomal DNA

Mitochondrial DNA

Y-Chromosome DNA

DNA Test Process

DNA Test Results

DNA Mutations

Y-DNA Markers

More Y-DNA Markers

Y-DNA TMRCA

Y-chromosome snps

Y-DNA Haplogroups

mtDNA Interpretation

mtDNA Haplogroups

Testing Companies

DNA Links

Y-Chromosome SNPs

  • SNPs are rare mutations at a single nucleotide.
  • Males with the same SNP belong to the same Haplogroup, and usually share similar origins.
  • Haplogroups can be predicted from STR values and typically appear on DNA test reports.

    Some Haplogroups defined by SNPs

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