which dna comes from the mother
Mitochondrial DNA. Mitochondrial is passed from mother to child. Since only females pass on their mtDNA, testing the mtDNA tells about the mother, to her mother, and so on along the direct maternal line. Both males and females receive mtDNA from their mothers, so both men and women can test their mtDNA. While mutations occur in mitochondrial DNA, the rate of mutation is relatively slow.