Is there a calculator?

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.