do you want to learn about recessive
genes of course you do
otherwise you probably wouldn't have
clicked this video or just want to be
entertained
and now you're going to learn about
recessive genes anyways
i'm going to explain all the different
types of pairings that you can have
and the percentages that you see when
you're buying snakes and you're like oh
what's that head something hit this
percentage
after this video you will understand
and in return for giving you such
valuable information
why don't you like the video put a nice
comment
or mean one if that tickles your fancy
because you're a terrible person
or subscribe or just do all of them
okay let's go
[Music]
we're going to use the example of albino
but anneries work the same way so do
square tails
and anything that's recessive so
the albinos are gonna be orange the
normals are gonna be brown
and we're just doing an albino to a
normal and this way
it's easy to understand there are two
forms
of the recessive gene any recessive gene
there is the heterozygous
so we're going to call it the het z and
there is the homozygous
homozy the homozy
just think two of the same homo two of
the same
so the albinos that are are homozygous
they're carrying two of the same albino
genes that's the only way to get a
visual albino you need
two albino genes now for the
heterozygous
there is one albino gene so if a normal
is het
for albino it's still going to look
normal because it's only carrying
one gene so the head is missing
the homo has two het missing one
homo two of the same okay so this is an
albino
and we're breeding it to a normal so we
breed
the albino to the normal now what's
gonna end up happening here
is we're gonna have let's say eight
babies one two three four
one two three four they're all gonna be
normal
but they're all going to be het
z for albino so
any time that you have here a visual
albino
all the babies are going to be a hundred
percent
heterozygous for albino
so anytime you see someone selling a
snake that says
it's a hundred percent pet
or just says het albino you know
that there's a visual parent and the way
that you can make sure that these babies
are
a hundred percent head albino is asked
to see a picture of the parents
because most breeders will have pictures
of the parents breeding or still have
the parents so they can say hey this is
the mom this is the dad
because this is the mom or it was the
dad
you know they're a hundred percent hit
for albino
an albino to an albino
what's going to end up happening is
you're going to get
one so cause from here what happened is
she sent one copy of the albino gene to
each of these babies
and this one didn't send a copy because
it didn't have it so
all of those had one copy happens when
you breed an albino to an albino
is these two are both homozygous so
there's two copies here there's two
copies here
and both are going to send a copy to
each of the children
so we're gonna have one two three four
one two three four we're gonna have
eight babies
and all of them are gonna be homozygous
because
both parents passed on the gene they had
to
they couldn't not pass on the gene so
because of that you have a full litter
of albinos
so you breed an albino to an albino you
get all albinos
there's no het they are homo they are
carrying
two of the same gene and they will all
be visual
any other gene that is recessive you
breed two of them together
all the babies are gonna be visual let's
say we took two of these babies over
here
and they're both 100 hec
for albino so they look
normal but they're both carrying
albino instead of like with the visuals
where they always pass on the gene
because they are carrying it but they're
not visually expressing it
they're only going to pass on about half
we'll get one this one
let's say there's the four babies
and four babies now
only half of these would be carrying the
gene
and only half of these would be carrying
the gene
so about 50 percent of them from each
are carrying the gene so
you're gonna have fifty percent
that are actually hit
now about 25
of the babies are going to come out
visual 25
will come out visual about that because
even though about fifty percent of them
got the gene from one and fifty percent
got the gene from the other
we have about 25 percent where both
genes hit
because there's a 50 chance here and a
50 chance here
and then those two have to go against
each other and meet so you're gonna have
25
visual albinos so let's say
out of one two three four eight that
would be
two right yeah that would be two
so you'd have probably about two nice
little
visual albino snakes so there's about 25
percent
that will be normal
and they'll have missed the gene from
this one and they'll have missed the
gene from that one
instead of because these 50
that got the head albino they're not 50
head albino these 50
are carrying albino and then these 25
percent are not carrying albino
but out of these there's a higher
percentage of them carrying albino than
not
so because there's no way of
differentiating visually which ones are
carrying albino
instead these babies are labeled as 66
percent
pet for albino
so the 25 percent that are visual those
are albinos they're sold as albinos
but this 75 percent that are made up of
50 percent head albino and 25
normals we just label them as 66 percent
head
with these 66 head albinos there's a few
of them that are not going to be albino
and they're not carrying it
and then there's going to be a decent
amount that are carrying it
so now when you breed this there is a
chance that it's not carrying anything
so if you breed it to anything
that is an albino you shouldn't really
label it
as anything more than possible head
albino because there is a decent chance
that it's not carrying anything
but the moment that this 66 head
albino is bred to
an albino now we're gonna find out
if it's either a hundred percent
albino
or it's just a normal
and this is called proving a snake out
so we take this 66 percent head
up albino we breed it to an albino
if we get albinos it's no longer a 66
percent head albino
it becomes a hundred percent
het albino but
if it comes out normal if they're all
normal
and you have about a 50 chance here of
producing
uh visuals if it is
head albino so
if it isn't head albino then that 66
becomes a whopping zero percent
so it's just a normal then
let's do that breeding here once again
just to help you understand
let's say you took because this was a
normal to an albino so now let's say you
take one
that is a hundred percent
and you take that snake and you breed it
to a albino
if you breed a visual to a non-visual it
doesn't matter
they're all going to be carrying the
gene this is passing on
one copy of the gene to all of them and
then this one
passes on one copy of the gene to about
50 percent chance so those 50 percent
will end up being visuals then those
other fifty percent
will be a hundred percent head
very nice now if we take this same snake
and it's a hundred percent head
and we breed it to a snake that is not
so this is just a normal
what we're going to end up getting is
all normals
and about 50 percent of them will be
carrying albino so that litter will be
sold
as 50 percent
head albino
as soon as you start breeding these 50
percents
66 into other genes that are not
carrying them
that percentage goes down and we just
call them
possible but
possible really shouldn't affect the
price
the 66 percent hits will probably cost
you a little bit more because there's a
good chance that they have them and the
100
heads should be more the most valuable
basically of
everything that isn't visual because
when you buy a 100
hat you're not playing any games you're
not guessing with the 66
chance you got a pretty good chance of
getting it and if you know what to look
for you might be able to you know pick
out the brightest snake
and take your chances that that one's
the albino but when you come to the 50
percent head
it's just a matter of fortune you know
if you're feeling lucky or whatever
maybe it will be but maybe it won't
because you're
you're just taking that chance always
need two copies
of the albino gene to get a visual
if they're not both getting it there's
no way that you're going to have
visual albinos
most important thing in all this
if there's a visual parent carrying that
recessive gene
the babies are all going to have it so
whenever you're getting something and
you want to go cheaper and you want to
get the ones that are carrying the gene
as opposed to
paying more for the ones visually
showing it always make sure
that one of the parents is a visual
albino
or a visual animal of the gene that you
[Music]
want
[Music]
you