how do you figure out percentage

how do you figure out the percentage of het it is. j/w

visual ( aka albino) X Normal = 100 % hets
100% het X 100% het = 66% hets
100% het x Normal = 50% Hets


those are the standards

Its not "how much" het the animal is. It is the chance or possibility that it IS het. It either is or it is not. Nick's helpful post shows you the possibility of the offspring being het in each scenario.

Also a 50%(or any %) het once proven (produced babies that are visible morph) are then considered 100%. Like stated previously the number shows possibilty of being a het(100%).

ok so if i was to breed my normal, i dont know what % he is, to a female albino, then the offspring would be 100% het because both are recessive right? and if i was to breed my normal to a spider than 50% would be het?

so my normal is just a 100% het or is he just a normal.?

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Originally Posted by HVfast2026

so my normal is just a 100% het or is he just a normal.?

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What did you buy it as normal or het..

There is no het for spider it either is or isn't a spider. :D:D

This might give you a better idea on basic genetics and possible outcomes http://www.ballpython.ca/genetics.html

thanks GA ball pythons
i was just going to say that.

A normal is a normal. Hets come from selective breeding. Spiders are dominant so there is no het spiders. They either are or they are not. A spider to a normal gives you 50% chance per egg that you will get a spider.

An albino(visible) to a normal will produce all normals that are 100% het for albino. Breed that het to an albino and you will have 50% chance per egg for visible albinos(normals will be 100% hets). Albino to albino makes all albinos.

Het albino to het albino gives you 25% per egg that you will get a visible albino. The %'s are avereages and not guaranteed. I have a friend that bred het to het and got 3 out of 4 albinos. That is amazingly good luck.

I also know people that bred het to het and got no visible albinos.

ohhhh okay. now i think i get it. when i saw like 100% het albino i thought they were albinos. but from what im getting. they're 100% het for producing an albino right?

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Originally Posted by westcoastjungle

A normal is a normal. Hets come from selective breeding. Spiders are dominant so there is no het spiders. They either are or they are not. A spider to a normal gives you 50% chance per egg that you will get a spider.

An albino(visible) to a normal will produce all normals that are 100% het for albino. Breed that het to an albino and you will have 50% chance per egg for visible albinos(normals will be 100% hets). Albino to albino makes all albinos.

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so you're saying that if i take my normal breed it w/an albino, offspring are all normals with 100% het for albino. and if i take one of those offspring and breed it w/ the albino from before then ill have 50% chance per egg for visible albinos(normals will be 100% hets). but what percentage het will the albinos be?

sorry if im being a nuisance. =/

albinos wont be het they will be visual albino and contain the Homo gene ( you know what i mean guys)

and how do i know which ones are het becausehere it says 50% het albino and 50% normal.?

Quote:

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Originally Posted by HVfast2026

ohhhh okay. now i think i get it. when i saw like 100% het albino i thought they were albinos. but from what im getting. they're 100% het for producing an albino right?



so you're saying that if i take my normal breed it w/an albino, offspring are all normals with 100% het for albino. and if i take one of those offspring and breed it w/ the albino from before then ill have 50% chance per egg for visible albinos(normals will be 100% hets). but what percentage het will the albinos be?

sorry if im being a nuisance. =/

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Visible albinos are not hets they are albinos. The het term only applies to normal looking animals that carry gene for the trait. Once the trait is visible then you just say the name of trait example albino, pied, clown.

You are not a nusiance at all! Everyone on this site once had they exact same questions(myself included) once and learned by asking questions. Unless you have a background in genetics this is not obvious stuff. Better to ask than assume and buy the wrong animal for your project/plans.

Quote:

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Originally Posted by HVfast2026

and how do i know which ones are het becausehere it says 50% het albino and 50% normal.?

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You don't until you prove them out by breeding them.

Oh yeah your right with the 100% het. Now you got it :sunny:

50% het usually means parents were hets so no guarantee babies carry the gene until you breed one and see a visible morph. They are usually much more inexpensive for a 50%. Some might just say possible het or pos het.

so how can i "detect" which ones are hets and which ones a just normals? or do i have to just know that.

Quote:

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Originally Posted by HVfast2026

so how can i "detect" which ones are hets and which ones a just normals? or do i have to just know that.

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No you can "detect" you need to prove them by breeding them to a know 100% het or an homozygous (visual)

so lets say i breed my normal with a 100% het piebald then what would i get?
and if i did that with a homozygous piebald what woud i get?

Quote:

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Originally Posted by HVfast2026

so lets say i breed my normal with a 100% het piebald then what would i get?
and if i did that with a homozygous piebald what woud i get?

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Normal looking offsprings considered 50% het for pied

Normal to homozygous gives you 100% het. For the het to normal I just say possible het. I forget the exact percentage but definately not 100%. I never memorized the het to normal %'s I just figure it's a gamble.

so if i would like to end up with piebalds i would have to breed my normal to a what( het piebald or homozygous) then breed the offspring to the piebald from before to come up with 50% normal het piebald 50% piebald. and if i needed to get a piebald. where would i find one. i dont know if im not searching hard enough or what but i cant find one all i find is het piebalds.

Quote:

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Originally Posted by HVfast2026

so if i would like to end up with piebalds i would have to breed my normal to a what

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If you use a normal female it will be several steps

You can use a Pied or a 100% het pied but you would not get any visuals, you would get normal looking offsprings considered 50% het for pied (that is the normal X 100% Het pied) or you would get normal looking offsprings 100% het for pied (that is the normal X pied)

What you do then is that you keep all the female offsprings, raise them up and breed them back to their dad (your 100% het pied or pied) to prove them out and get some pieds.

To help you understand better http://www.ballpython.ca/what_get/recessive.html

wow this thread's getting complicated...

Again, I would refer you to the genetics page referenced before. It answers all these questions with pictures and clearly worded details.

http://www.ballpython.ca/genetics.html

If you want to produce a visual morph from a first time breeding, your best bet is to go with a co-dominate or dominate morph. spiders, pastels, pinstripes, mojavas, cinnys, the list goes on....

if you put the time into breeding projects then recessive traits (all the ones that can be het) you can get some very nice morphs. but it requires multiple breedings, which means you'll have to raise the female hatchling (that is het for whatever trait) to breeding age, 2-3 years, and breed her again.

I find the best way to understand all this is to draw out a punnet square. I'll try to explain how to make one. All these morph genes we work with come in pairs. The general rule is that lowercase letters are the morph and uppercase is normal. To complete the punnet square you combine the vertical letter and the horizontal letter to complete the 4 combinations. Also the forum won't display the punnet square correctly. Just remember you need to shift over the vertical header so the columns line up.

Albino: aa
Normal: NN
Het for Albino: Na

Albino X Normal

a a

N Na Na

N Na Na

The albino has two albino alleles. He will give an albino allele to every offspring, and a het needs one allele out of the pair, so all the offspring are het albinos that look normal.

Het Albino X Het Albino

N a

N NN Na

a Na aa

Here's where it gets interesting. For each egg, the parent either contributes a normal allele or an albino allele. As you can see, one combination is a visual albino. Two are het albino, and one is a normal. Because you can not tell a het from a normal, all the normal looking offspring are called 66% het albino because 2 out of 3 could be het albino, which is 66%. One thing to remember with punnet squares is that these combinations provide percentages that are per egg, not per clutch. Of course you're not gonna have a perfect clutch of 4 eggs.

Most people that use punnet squares with snakes are not aware that they can be used elsewhere, for example in describing the sex of human offspring and all mammals I guess. Of course we all know that the man determines the sex of the child. The reason for this can be shown in a punnet square:

Male: XY
Female: XX

X Y

X XX XY

X XX XY

The male contributes either the X or Y allele. Female always gives an X as that is all she has. When he gives a Y, the baby is male. X and it is female. I always found this interesting. My aunt and uncle have 4 girls. I guess his Y allele was deformed. lol

More than anything I found this: http://www.newenglandreptile.com/genetics_intro.html
site to be very helpful when all the percentages and genetics had me confused. I even like it better than the marcus jayne website. Once you understand the first page, there are I think 3 others that go into further detail. I learned a lot from this, even when I didnt understand ANYTHING before.

thanks soooo much. and that punnet square helps out a lot too. i dont know why i didnt even think of that seeing i used to do stuff like that in biology last year.