Y-Chromosome vs. Mitochondrial: What’s the difference?

Y-DNA and the Y-Chromosome exist solely exist within men. Y-DNA is apart of our own DNA, but it’s found in the Y-chromosome of males and can ONLY be passed from father to son.


mtDNA, on the other hand, is the DNA of the mitochondria, and can only be passed on by women. A mother can pass the mitochondria and mtDNA on to both their female and male children, but only their daughters would then be able to pass on the mitochondria to their future children.

So, to keep things simple, men can pass along Y-Chromosomes as they only lie within men, while only women can pass on the mitochondria, but that can exist in both men and women.


This drug test form must be completed before check out. The info is required in order to create your donor pass. A donor pass must be presented at the collection site with a valid photo ID. Once the form is complete, you will be able to proceed and check out. Your donor pass will be emailed to you, in most cases same day, or within 24 hours. ALL DONOR PASSES ARE VALID FOR (7) DAYS. Collection site is selected based on the zip code you provided.

Once the order is submitted there are NO REFUNDS. You can only request an extension or drug test credit in case of cancelation.

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