world is being compared to that and seeing what parts on your
here. And that is how your ethnicity results are reported
population is. Whereas you and most everybody else in the
then they will give you the results that show X percent is
genome are most closely matched by one of these parts over
only going to have one color but in actuality, each segment
on Facebook, Family History Fanatics where we can interact
red. So, in this case, Africa but it might be a 70% match or
they explain in more detail how this process actually works but
answer it for you. Connect with us on Twitter at FH Fanatics or
segments, but after coming up with that first draft then
to the 23 and me website and look at their ethnicity
to you. Now, again, this is really simplified. If you go on
then we have this segment of yellow blue yellow then a
have hundreds or even thousands of segments this just has 10
hey, History in this spot right here which one does this match
calculated, put them in the comments below and we'll try to
you, this represents the reference database where these
people all have DNA that is from wherever that reference
this, Y percent is this, and so on. So again, just to remind
populations and coming up with some percentage that is the
country level or a you know even a county level inside of
results, they have links to their ancestry composition that
analysis of it they may decide to change this to a yellow
smoothing to eliminate any potential errors that there is
done that for your whole genome after they've done the
it in some cases they're looking at DNA from those
if you have a question about how your ethnicity results are
the smoothing does is it looks at these places where it might
smaller segment of red and another segment of green what
threshold for when they say hey this is from that after they've
for instance maybe from a continental level now to a
as Africa. As you get into different regional segments so
an 80% match for Africa and so that's why it's being reported
you can see that hey there's a nice segment of red altogether
smoothing of it so for instance as you're looking along here
other words, it's probably not going to be a perfect match for
is going to have a percentage of what it most likely is. In
be a mistake so for instance that blue is that really blue
or is that another yellow and by doing some statistical
Now, the way that I portrayed this here is each segment is
and it might look something like this now this is
they're going to take a look at this and do some statistical
African population and they will do that all along your
going to compare to the reference database and see,
simplified it's shorten down like I said normally they would
genome and come up with a first draft of what your ethnicity is
and in this case we can see that hey this matches the
little tiny segments and there may be hundreds or thousands of
reference database. So, can think of the reference
those overall segments on your overall DNA that they're
looking at and each one of these little segments, they are
take your DNA and they will break it up into all these
matches to. The first thing the companies will do is they will
can get our ethnicity or admixture results. Now, if you
DNA what we're looking at is we're looking at each of these
Americas represented by yellow and this is the Ashnazi Jewish
people in seeing how it matches up and which it most closely
databases as comprising of a groups of people that each have
represented by blue this is somebody from Asia or the
all the same color of Legos so for instance this is somebody
population represented by green now when we're comparing our
from Africa represented by red this is somebody from Europe
we're going to use them to talk about reference populations.
reference database made and each company has a different
of concepts and so today, I want to use Legos to talk about
watch part one, I told you that first off, we need to have a
how our DNA is compared to the reference databases so that we
about DNA because they're colorful. Legos are something
this is a segment of DNA. Now, I've used Legos before to talk
Howdy, my name is Andy Lee with Family History Fanatics and
that people understand and we can use them to simplify a lot with you and respond to your comments.
Legos are one of my favorite toys growing up and today,