accurate. It doesn't mean that you're not going to have
about how your comparison is made with these reference
populations, put it in the comments below and I'll try to
population. If you have another question about reference
we don't have data from all these peoples and all these
have stayed within their group for hundreds and hundreds of
answer it for you. Be sure to check our website WWW dot
history right now, these assumptions are really good.
as far as their DNA as the United States may be they're
the Scandinavians with the Viking invasions and then the
Family History Fanatics.com so that you can find out about
still pretty mixed up when you get to continental Europe it's
Ashkenazi Jews because they kept intermarrying within
fact that not just these countries have been immigrant
else that's already in the database, they're not going to
particular they're probably going to actually have DNA from
daughter or a grandparent or even a first cousin of somebody
a good assumption. So, while I tell people from the ethnicity
It's really because we didn't start with research in mind and
countries there have been a lot of countries that have had a
standpoint of trying to get a baseline excluding countries
people from lots of different areas there's been a lot of
they really are but again, from developing a baseline, this is
migrations that have happened. So, from where we're at in
Romans invaded them and then after the Romans there was the
differences between people. Now, in part two, I'll talk
groups within Europe. However, in creating the database for
ways. This may appear as a much closer relationship than what
cover the whole area. Now, this could be a problem with
pretty good at a regional level at least within Europe but
years and so they're actually genetically distinct from other
one person is related to another person in multiple
that country and so while Britain may not be as mixed up
the second thing to be able to become part of the reference
database is you can't be from a primarily immigrant country.
like the United States and Canada and Australia is
everything below that is probably a lot more sketchy.
That doesn't mean that the results are going to be
for the last few hundred years. Again this is a pretty good
want to include your information. The reason for
one group. In fact it's the exception to find people that
own criteria on this but usually if you are a son or
this is is they don't want to have too much of one population
endogamus populations. For instance, the Ashkenazi Jews
themselves, there's probably a lot of multiple relation where
center of DNA. They want to have it as broad as possible to
lot of movement of people into and out of for various reasons
whether it's for war and conquest for instance the
it. Now, each reference database is going to have their
who have reported being from certain areas and still get a
the third thing to be part of the reference database is you
results, they're great at the continental level and even
probably a really good assumption to start with now
can't be closely related to somebody else who's already in
you have to make. Now, does it make it so that hey, some of
the same there's been a lot of migrations with incontinental
lots of different people that have actually been a part of
Europe a lot of trading of DNA of peoples as people were
people in these countries are descended from immigrants to
fairly good estimate of your admixture of your heritage. So
Normans with the Norman invasion and so they have had
Australia. While these countries do have their
take just your DNA and be able to compare it to other people
indigenous populations, the majority, the vast majority of
thing that's not accounted for but again from a assumption
assumption but one thing that it doesn't account for is the
several different groups as opposed to being primarily from
were or where they came from and so it's a compromise that
place and so you may be reporting all four your
mixture of the DNA of these groups so when you're looking
grandparents was from Germany and came over to England true
grandparents are and where they came from once you start
those countries. And those immigrants came within the last
grandparents from England when in fact well one of your great
conquered and different things were taken over so that's one
Angles and the Saxons that invaded them and then there was
populated by people for thousands of years but the
whether it is for trade whether it is for immigration or
islands of Great Britain have you know historically been
entirely likely but it is still pretty amazing that you can
at somebody from the United States or from Canada in
great great grandparents less and less P know who all of them
are only from one group that have been in the United States
Some place like the United States like Canada like
going to be same as what your paper trail is? Yeah, that's
being from the same location. Now, that location maybe a
few 1hundred years. Now because a countries are filled with
database, companies usually try to narrow it down to a few
country, it may be a place within a country but it's
these results are not going to be accurate or they're not
come from people that are in the databases or in other
getting back each generation to your great grandparents your
however the majority of people know who all four of their
for grandparents it's really easy to have a great
grandparent or a great grandparent is from a different
words, people that have had that DNA testing done. Now, to
they have a assumption they can make that your DNA is
representative of that place. One thing you may is that well
important that all four grandparents are because then
they are dividing people up into to report their ethnicity
that's that's good but there's not necessarily that many
things. First off, you have to report all four grandparents
be able to get into a reference set, be able to be part of that
order to understand that, you have to recognize that to get
your ethnicity results, you're being compared to a reference
populations of the world and so a lot of the reference sets
people that we can rely on and that doesn't cover all the
world that have not intermixed with other populations and
database. Now, what is the reference database? Well, each
might be a lot different. In most cases, it's probably just
or their administrative results. Now, some of these
groups come from studies of various populations around the
a little bit different. Why is this and why aren't you the
company decides on a set of DNA that represents whatever groups
results are a little bit different. In some cases, it
segment of DNA. Today, we're going to try to demystify what
same because you're from the same set of people. So, in
Howdy, I'm Andy Lee with Family History Fanatics and this is a
you're looking at your ethnicity results, one of the
In fact, you may have siblings even that your ethnicity
things you may notice is that you may have close relatives.
a reference population is and how that is created. Now, when
to demystify that. understand what reference populations are. So let's try
You can't understand your ethnicity results if you don't
upcoming E conferences that we're going to be a part of.