Asinineness of the day.
Jul. 4th, 2023 11:55![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png){kind=small}
dantesspiritLast night, read a comment about genetics, Native Americans and white people.
Someone replied that 'it's complicated'. And proceeded to claim that "You can have indigenous ancestry and after 5 or more generations it is no linger retained. "
That's... not the least bit true.
Autosomal DNA tests, which most genealogy sites use, go back 6 to 8 generations, themselves. YDNA tests- the male line- can go back up to 52 generations. And mtDNA- the maternal line- can show you 10k years worth of ancestry.
They responded today with this foolishness- Yes it can in mtDNA and YDNA and not show in the atDNA. It is complicated when it comes to atDNA. Having written the Beginners Guide to DNA. I know in teeny bit about this 😉"
It's Not Complicated. The tests themselves explain everything they can and can't do, in layperson's terms, so they can be easily understood. And if you knew this, why'd you say it stopped at 5 generations???
My African ancestry doesn't come into my line until 8 generations out. My DNA test, autosomal, shows exactly that too.
DNA doesn't just up and say, welp, there's your 3rd great grandparents, no more DNA info for you.
Genetics don't work like that.
I'm sure there's probably *some* good info in their book, but holy shit are they way off base as far as how DNA works.
Someone replied that 'it's complicated'. And proceeded to claim that "You can have indigenous ancestry and after 5 or more generations it is no linger retained. "
That's... not the least bit true.
Autosomal DNA tests, which most genealogy sites use, go back 6 to 8 generations, themselves. YDNA tests- the male line- can go back up to 52 generations. And mtDNA- the maternal line- can show you 10k years worth of ancestry.
They responded today with this foolishness- Yes it can in mtDNA and YDNA and not show in the atDNA. It is complicated when it comes to atDNA. Having written the Beginners Guide to DNA. I know in teeny bit about this 😉"
It's Not Complicated. The tests themselves explain everything they can and can't do, in layperson's terms, so they can be easily understood. And if you knew this, why'd you say it stopped at 5 generations???
My African ancestry doesn't come into my line until 8 generations out. My DNA test, autosomal, shows exactly that too.
DNA doesn't just up and say, welp, there's your 3rd great grandparents, no more DNA info for you.
Genetics don't work like that.
I'm sure there's probably *some* good info in their book, but holy shit are they way off base as far as how DNA works.