how do you figure out percentage

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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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.