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

DNA Mutations

Y-Mutation

Copy Error, 1631 Bible

mt-Mutation

  • Mutations are "copy errors" that sometimes occur when DNA is passed on to the next generation


  • Y-DNA and mtDNA mutations are generally harmless, but are helpful for determining connections


  • The more mutational differences, the greater the "Time to Most Recent Common Ancestor"


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