100% het

I have a couple 100% het BP. There is possible hets such as 66% and 50% as well but with 100% hets, there is no "possible" mixed in with it. Is 100% hets a guarantee? I am getting a pair of 100% het clowns and I am wondering if there is a possible chance that one or both of them will not prove out or if I am guaranteed to produce at least one clown out of a clutch?

If you buy from a reputable breeder then you should be fine with the 100% hets. Make sure you research the buyer and make sure they are trustworthy.

It's a guarantee from the seller that they are carrying the clown gene. It is not necessarily a guarantee that you'll produce clowns every single time that you pair these two together. There are still odds at play that are out of anyone's control.

Male:	Het Clown
Female:	Het Clown
Percent	Fraction	Traits
25%	1/4	Clown
75%	3/4	66% Possible Het Clown
View Results Page

If you bought from a reputable breeder and if the odd gods are in your favor 100% hets should produce a clown for you.

I just wanted to know if 100% are at all the same as the clown itself. Breeding a clown to a clown would produce 100% clowns but it seems I have a higher chance of producing 66% hets instead of the clown itself. As for the breeder I know him very well and I have bought at least 50% of the snakes I own from him. He never just says it is a het, he shows us the parents in person except during reptile expos where he has pictures of the parents and he will ship with pictures of the parents. He is one of the best and most understanding breeders that I personally know.

Quote:

---

Originally Posted by BCS

I have a couple 100% het BP. There is possible hets such as 66% and 50% as well but with 100% hets, there is no "possible" mixed in with it. Is 100% hets a guarantee? I am getting a pair of 100% het clowns and I am wondering if there is a possible chance that one or both of them will not prove out or if I am guaranteed to produce at least one clown out of a clutch?

---

Your 100% het guarantee is directly related to how honest the person you are buying them from is. Anyone can take a normal, call it a 100% het and sell it as such. If you know the person you are buying them from, and trust them, the guarantee is much better than buying a "100% het" from a stranger on Craig's List.

You are not guaranteed to produce at least one clown from a pairing of 100% hets. Each egg has a 25% chance of being a clown. Statistics being what they are, there is a chance you get zero full clowns.

Paperwork is worthless with recessives.
Buy from a good breeder, in this hobby you word can go a lot further.
That being said I have seen 3 breedings before provening out.

A clown ball python has a pair of genes made up of two clown genes.

A het clown (AKA 100% probability het clown) BP has a pair of genes made up of a clown gene and a normal gene. A het clown BP looks like a normal BP.

When mating two het clowns, each egg has a 25% chance of hatching out a clown (statistically speaking). There is a 99% probability of hatching at least one clown in 17 eggs, which is approximately 3 clutches. There is no way to be 100% certain of getting any clown babies from this mating. We hope Lady Luck smiles on your efforts and gives a clown in the first clutch.

As everyone said above, if the animals are as advertised, 100% het for clown, then each egg has a 25% percent chance of being a clown. The reason you see so many chances at 66% het for clown is this. Each animal can throw one of two genes. They will either throw a clown gene or a normal gene. If the male throws a clown gene and the female throws a normal gene, the resulting offspring will look like a normal but be het for clown. If the male throws a normal gene and the female throws a clown gene, the resulting offspring will look like a normal but be het for clown. If both the male and female throw the normal gene, the resulting offspring will look like a normal and will in fact be a normal. If both male and female throw the clown gene, the resulting offspring, having two copies of the clown gene will be a clown.

The issue is that three out of the four scenarios will look like a normal ball python. Only two of the three will actually be carrying the clown gene and the other will not, hence 66% chance het for clown. That is how it plays out on a punnett square.

The reality is that there is no way of knowing if any, or all, or none of the three normal looking babies are carrying the clown gene until they are grown to maturity and proven out. Once again the odds will play a part. So even if they are het it could take more then one breeding attempt to hit the combination that proves it is truly het.

I hope that helps.

Quote:

---

Originally Posted by BCS

I just wanted to know if 100% are at all the same as the clown itself. Breeding a clown to a clown would produce 100% clowns but it seems I have a higher chance of producing 66% hets instead of the clown itself.

---

You don't have clowns - you have het clowns. A het clown does not look like a visual clown, but is carrying the clown gene. You have 100% het clowns because one of their parents were a visual clown (the other was not).

You are correct in that breeding a visual clown to a visual clown produces all visual clowns. The pairing I listed above is for pairing two het clowns together, which is why the odds of producing a visual clown are lower.