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
More Y-DNA Markers Small differences may mean a common ancestor. Testing with more markers (e.g. 25, 37, 67) can help resolve results Participant 1 and 2 have a 24/25 marker match are almost certainly related, but not 3 (with only an 18/25 match)
