I’ve recently had my DNA analyzed through 23andMe (a birthday gift) and the most fascinating thing has turned out to be my maternal haplogroup. The mtDNA is found in the mitochondria, and is not subject to recombination at sexual reproduction, and a copy (which can mutate occasionally, which is how subclades and new haplotypes begin) is passed down from mothers to their children, but only daughters pass that same sequence on to the next generation, so it’s a direct matrilineal lineage back to a common ancestor, who was an ancient woman, and my great-something grandmother. In the case of my haplogroup, she was the woman who started the haplotype “U” fairly soon after humans left Africa, and her lineage goes back to the earliest common female ancestor of all humans, in Africa, (called "Mitochondrial Eve") who started the haplotype “L”.
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I have been on this quest too: https://feminismandreligion.com/2012/02/27/a-clash-of-cultures-in-our-genes-by-carol-p-christ/