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Im sorry but you are totally wrong on this subject, you need to study more, I suggest you start with the male y chromo.
You miss my point. I suggest you study their technique more, to see that they use modern populations to infer, with varying level of accuracy, historic populations. How could they possibly go back "thousands" when few samples of DNA from "thousands" of years ago are available.
BTW, referring to the "male y chromo" is a bit redundant, isn't it? And while we're at it, mtdna is even more conserved. You might start your reading with it.
But they actually don't go back "thousands". They go back as far as DNA genealogy testing has been done. Maybe 10 years?
Not true, the ethnicity reports can be more representative of about a thousand years ago. Autosomal DNA matches can include up to about 8th or 9th cousins (meaning your most recent common ancestors are 7th or 8th great grandparents, usually going back a couple hundred years). Y and mtdna can be traced back to prehistoric times because there's no recombination involved and mutations only happen every couple hundred years or so.
You miss my point. I suggest you study their technique more, to see that they use modern populations to infer, with varying level of accuracy, historic populations. How could they possibly go back "thousands" when few samples of DNA from "thousands" of years ago are available.
BTW, referring to the "male y chromo" is a bit redundant, isn't it? And while we're at it, mtdna is even more conserved. You might start your reading with it.
Yes, to determine the ethnicity reports, your DNA is compared with modern populations, however, the DNA from both comes from older populations and therefore can show us where our DNA comes from going back about a thousand years.
Yes, to determine the ethnicity reports, your DNA is compared with modern populations, however, the DNA from both comes from older populations and therefore can show us where our DNA comes from going back about a thousand years.
All of our DNA is ancient. We just rarely have ancient remains to compare it to.
Well, yes, but with autosomal dna, there is so much recombination that unique segments which can be found more commonly in one area than any other are eventually recombined and don’t go back that far.
Well, yes, but with autosomal dna, there is so much recombination that unique segments which can be found more commonly in one area than any other are eventually recombined and don’t go back that far.
Even though it recombines it all came from ancient ancestors. Recombination just rearranges it, with some mutations thrown in.
That is how the man in the article I cited could be linked to Cheddar Man.
The Y chromosome:
An African American man with a unique Y chromosome has been linked to 11 men in Africa, all in one village in Cameroon. They share an ancient direct male ancestor.
Well, yes, but with autosomal dna, there is so much recombination that unique segments which can be found more commonly in one area than any other are eventually recombined and don’t go back that far.
Even though it recombines it all came from ancient ancestors. Recombination just rearranges it, with some mutations thrown in.
That is how the man in the article I cited could be linked to Cheddar Man.
The Y chromosome:
An African American man with a unique Y chromosome has been linked to 11 men in Africa, all in one village in Cameroon. They share an ancient direct male ancestor.
Even though it recombines it all came from ancient ancestors. Recombination just rearranges it, with some mutations thrown in.
That is how the man in the article I cited could be linked to Cheddar Man.
The Y chromosome:
An African American man with a unique Y chromosome has been linked to 11 men in Africa, all in one village in Cameroon. They share an ancient direct male ancestor.
We do not have DNA from all of our ancestors, but what we do have came from ancient ancestors.
Well, duh. Modern DNA wasn't "invented" or "developed" by modern humans. Of course our DNA has ancient roots. You could probably argue that our DNA even predates our "ancient ancestors", since it didn't originate with them either.
So what's the point?
Other than that, New Scientist is a good read, isn't it?
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