albino/pied project

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Originally Posted by Cody

Lets see if I can explain this for you. I'm not sure if this is all correct, but this is how I understand things.

100% het X Normal = 50% chance het, 50% chance normal

Morph X Normal = 100% hets

100% het X 100% het = 25% chance morph, 50% chance het, 25% chance normal

Morph X 100% het = 50% chance morph, 50% chance het

Morph X Morph = 100% morph

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AND STARTS THE CODY FAN CLUB!!!

you're so smart. :heart::heart::heart:

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Originally Posted by Super_Smash

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Originally Posted by Cody

Lets see if I can explain this for you. I'm not sure if this is all correct, but this is how I understand things.

100% het X Normal = 50% chance het, 50% chance normal

Morph X Normal = 100% hets

100% het X 100% het = 25% chance morph, 50% chance het, 25% chance normal

Morph X 100% het = 50% chance morph, 50% chance het

Morph X Morph = 100% morph

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AND STARTS THE CODY FAN CLUB!!!

you're so smart. :heart::heart::heart:

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*Joins the club :roll: *

Cody got it right for simple recessive traits. It gets more or less complicated for other morphs, depending on how they're passed down.

If I were to personally pursue an albino project with hets, I would buy a 1.2 trio of 100% hets from a reliable source, or possibly more females. However, if you really are on a budget, I would buy a male 100% het albino male and 2 or more 66% het albino females. Since the male can be bred to multiple females, it would be the best value to buy the male at 100%. I also believe males would be cheaper.

With 2 66% het albino females, your odds of at least 1 female proving out are:
2/3 * 1/3 + 1/3 * 2/3 + 2/3 * 2/3 =
2/9 + 2/9 + 4/9 = 8/9
That's almost 90%, and pretty darn good odds.

With 3 66% het albino females:
3 * 2/27 + 3 * 4/27 + 8/27 = 25/27
Only a 1/27 improvement, so not really worth it in my opinion (from a genetic viewpoint anyway).

However, this is only the odds of the females carrying the albino gene, not the odds of you actually producing allbinos. Ball pythons aren't corn snakes, and not everyone has success with them. Always keep in mind through with hets: BUY FROM A RELIABLE SOURCE. Avoid places like reptibid like the plague. Only deal with people who are very well known and with good reputations, as your hets will only be worth as much as the paper they come with if you ever try to sell them. The breeder should also be able to provide pictures of eggs, and the babies hatching. Also do a thorough background check on the breeder through faunaclassifieds.

if you are trying to get an albino/pied cross, that is two different traits. both are recessive. that means that both need to have the albino and pieds genes. a 100% albino bred to a 100% pied (hets) won't give you an albino pied!


vaughn

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If I were to personally pursue an albino project with hets, I would buy a 1.2 trio of 100% hets from a reliable source, or possibly more females. However, if you really are on a budget, I would buy a male 100% het albino male and 2 or more 66% het albino females. Since the male can be bred to multiple females, it would be the best value to buy the male at 100%. I also believe males would be cheaper.

With 2 66% het albino females, your odds of at least 1 female proving out are:
2/3 * 1/3 + 1/3 * 2/3 + 2/3 * 2/3 =
2/9 + 2/9 + 4/9 = 8/9
That's almost 90%, and pretty darn good odds.

With 3 66% het albino females:
3 * 2/27 + 3 * 4/27 + 8/27 = 25/27
Only a 1/27 improvement, so not really worth it in my opinion (from a genetic viewpoint anyway).

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i dont really follow???

oh no i wasnt plannin on making an albino x pied thats to advanced for my level!

ok got it, if you just want an albino or just a pied a het x het breeding probably would be the best route. i would invest in at least a 100% het male and several poss het females. really do your homework on the breeder when purchasing hets. the more females you breed the better your odds on producing the morph!

vaughn

Thanx!

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Originally Posted by sk8er4life

i dont really follow???

oh no i wasnt plannin on making an albino x pied thats to advanced for my level!

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I was just explaining how you'd work out the odds that at least one of the females you bought would actuallly be het. As someone explained before, a ball python is either heterozygous for a certain gene or not. When a ball python is 66% het, it does not possess 66% of the gene; the 66% is to show the probability of the snake being a het.

Therefore, if you are to buy a single 66% het, there is a 66% chance of that snake being het (which is pretty straightforward).

If you are to buy 2 66% hets though, you do not have a 66% chance that both are hets. Let's just label the two snakes as snake A and snake B, and list all the different scenarios and their weighted probabilities.

1) both A and B are not het
1/3 * /13 = 1/9

2) both A and B are het
2/3 * 2/3 = 4/9

3) A is het but B is not het
2/3 * 1/3 = 2/9

4) A is not het but B is het
1/3 * 2/3 = 2/9

What I calculated for you before was the odds that at least one of them is het, which is simply the sum of 2), 3), and 4)
4/9 + 2/9 + 2/9 = 8/9

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What I calculated for you before was the odds that at least one of them is het, which is simply the sum of 2), 3), and 4)
4/9 + 2/9 + 2/9 = 8/9

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Great explanation! Very clearly written.