Is there a calculator?

I was wondering if there is a breeding calculator for ball pythons. Like what the chances of you getting certain colors...

one like this only for ball pythons..

http://www.silverfallchinchilla.com/...alculator.aspx


and would you have to download it?

Quote:

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Originally Posted by chinchillachic18

I was wondering if there is a breeding calculator for ball pythons. Like what the chances of you getting certain colors...

one like this only for ball pythons..

http://www.silverfallchinchilla.com/...alculator.aspx


and would you have to download it?

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Theres a good one at http://www.geneticswizard.com/ check it out. It does require you to know whether they are co-dom, recessive, het or homo but it's a very useful tool for mulitple combo morphs.

WoW O.O thats alot of options!! very detailed. Im gonna have to figure it out first! lol i like it though thanks :]

woah ok i totally dont understand that thing O.O is there one thats simpler?

I just went over and used it...and no, that's as simple as you can possibly get.

All you need to know is which mutant genes your snakes carry, and whether those genes are dominant, co-dominant, or recessive.
Homozygous means two copies of the gene are present in the snake (orange ghost--super pastel).
Heterozygous means one copy of the gene is present in the snake (het for orange ghost, pastel).

As far as I know, no actual dominant genes have been identified for certain in ball pythons. Spider and Pinstripe are often CALLED dominant, but since no one has produced a super-spider or super-pinstripe--which would be identified by the fact that all of their offspring would be spider or pin when bred to a normal--the genes are probably NOT dominant, but are co-dominant with a lethal homozygous form. I'm not not sure about the few other 'dominant' mutations identified.

I set up all my animals on metzcal and then it has a punnett square built in.

An efficient way is to understand what classification the morphs are:

spider=dominant

pastel, cinnamon, yellowbelly,....etc.=co-dominant

albino, pied, clown...etc...=recessive

Then you can understand all the pairings in terms of

(homozygous) recessive x dominant = 50% dominant het for recessive, 50% recessive etc...

Is there anything in particular you're having trouble with?

JonV

heres a super simplified one i check out alot
http://www.ballpython.ca/genetics.html

This won't be much help, but if you are planning to breed ball python morphs, I highly recommend getting a good understanding of genetics. Once you do you can do any combo in your head faster than it would take to play with those programs. :gj: If you are just curious about something, the ones already posted are about as simple as they can be.

Oh dont worry im not planning on breeding for a lonnngggg time dont lol im just seeing how hard it would be. I dont know very much about ball pythons yet so that would be a bad idea :P Snakes seem way different from mammals breeding wise..or maybe i just dont understand snake breeding enough yet. Im confused by that calculator...What do they mean when they ask for the male AND female? and then ask for other color combos? See, thats proof of how little i know about it lol

like say you wanted this color for example

http://www.newenglandreptile.com/ner...ll-python.html


Are the odds 1-in-16 because the carmel albino and the ghost are both recessive?

and if you breed 2 spiders together and you get a normal baby, later on if you breed that normal to another normal, do you have a chance of that normal creating a spider baby?

Spiders might be dominant, but might not be, and we will never know because there are no supers (well, we will never know until they do actual genetic testing). (In a true dominant, the homozygous version would look exactly the same as the het version).
Because of the lack of supers, I would set them up as co-dominant, and figure that all homozygous spiders die--this is probably what is happening. Most likely the eggs never hatch. Statistics would have to be researched to figure out if spider/spider crosses produce fewer live hatchlings on average. But there are no spiders that produce all spider offspring when bred to a normal, so for genetics purposes, it works as a co-dom.

Here's an example:

Say I want to breed a pastel female to a spider male.

It asks how many mutant traits are involved. I answer "2". I have a spider, and a pastel--that's 2 mutant genes.

I set up Gene 1. It's a co-dominant gene--so I check that, and is named "spider", so I type in spider in the box.

I set up the calculator for the male--he's a spider. He's heterozygous, so I check that box.

Then I set up the female.
She doesn't have the spider gene, so I check WT (without trait).

I set up Gene 2. It's a co-dominant gene--so I check that, and is named "pastel", so I type in pastel in the box.

The female's pastel. She's heterozygous, so I check that box.

The male doesn't have the pastel gene, so I check "WT" on his side, by Gene 2.

Then I click the button, and it gives me the percentages.

I get my answer:

25% WT
25% Het. Pastelc,
25% Het. Spiderc,
25% Het. Spiderc, Het. Pastelc,

(The c indicates a co-dominant trait).

25% normals, 25% pastels, 25% spiders, and 25% bumblebees

ohh ok i get it now lol thanks that helped alot! :) i was really confused about it

Quote:

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Originally Posted by chinchillachic18

like say you wanted this color for example

http://www.newenglandreptile.com/ner...ll-python.html


Are the odds 1-in-16 because the carmel albino and the ghost are both recessive?

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The odds depend on what you start with. The Caramel Glow is 2 recessive traits.

You can go about creating one several ways. The fastest is to breed a caramel to a ghost. That will give you a litter of NORMAL hatchlings which are all 100% het for caramel, and 100% het for ghost. They carry 1 copy of each recessive gene.

Raise them up, and breed them together.

6.25% WT
12.5% Het. Caramel,
6.25% Homozygous Caramel,
12.5% Het. Ghost,
25% Het. Ghost, Het. Caramel,
12.5% Het. Ghost, Homozygous Caramel,
6.25% Homozygous Ghost,
12.5% Homozygous Ghost, Het. Caramel,
6.25% Homozygous Ghost, Homozygous Caramel

There is only a 6.25% chance that you will get a caramel glow.

As for the spiders: No
Spider is not a recessive gene. It is co-dominant. That means if the gene is present, the animal will visually display it--in the case of a spider, if the spider gene is THERE, then the animal is a spider. If it's not there, then the animal is a normal, period. Breeding 2 normal siblings from spider X spider breedings will get you normals, and never anything more.

Pastel is another example of a co-dominant gene. You can think of co-dominants as being a sort of 'visual recessive'. A pastel is heterozygous for super-pastel. Super-pastels (the homozygous form) carry 2 copies of the pastel gene, while pastels carry only one copy. Normals from pastel clutches do not carry the gene at all.