Genetics guarantees?

[satomi325]

Genetically, how can this be? I mean, If I breed an albino, (m or f) who has both copies of the gene for albinism,(therefore making him an actual albino) to another snake whos completely normal, why WOULDNT my babies be all 100% het for albino? All of the babies get a copy of the gene for albinism from one parent, and a copy of non albinism from the other parent. Is it different with clowns? ghosts? axanthics? Im cornfused....

If the female for example was the het and not visual, she can have retained sperm from a previous breeding season or go through parthenogenesis(asexual reproduction).
This is what I was worried about in my previous post. There are cases where a clutch was sired by the current breeding male as well as the male used the previous season.

If any of this was the case, how would you know if your hatchlings were truly hets?

If the female was the visual, of course the offspring would be 100% hets.

[BHReptiles]

Genetically, how can this be? I mean, If I breed an albino, (m or f) who has both copies of the gene for albinism,(therefore making him an actual albino) to another snake whos completely normal, why WOULDNT my babies be all 100% het for albino? All of the babies get a copy of the gene for albinism from one parent, and a copy of non albinism from the other parent. Is it different with clowns? ghosts? axanthics? Im cornfused....

He's talking about the possibility that the babies are 100% genetic copies of mom. It is very rare, but it does happen where babies are clones of the mom. So if you breed a visual male to a normal female, there's a VERY small probability that the babies aren't really 100% hets, but 100% normals. He's just being overly cautious with how he breeds his animals which is fine. Not everyone chooses to do this because it is a very expensive way to save you butt in case the rare thing does happen.

[Zombie]

Genetically, how can this be? I mean, If I breed an albino, (m or f) who has both copies of the gene for albinism,(therefore making him an actual albino) to another snake whos completely normal, why WOULDNT my babies be all 100% het for albino? All of the babies get a copy of the gene for albinism from one parent, and a copy of non albinism from the other parent. Is it different with clowns? ghosts? axanthics? Im cornfused....

No its not different. You have it right. If a parent is a visual all offspring will be 100% het.

Satomi has it right, what the other person was trying to say is if you are using a female visual then you know all hatchlings will be het. But if the male is the visual one and the female had retained sperm from a past breeding then you couldnt call any hets because you wouldnt know for sure. Like if u bred a clown male to a het clown female but say u got a lesser in the clutch. You wouldnt be able to call any normal looking offspring 100% het. Because it would be obvious she had retained from other breedings. Best you could do is call them 50% het because the mom was 100.

[bcr229]

So.... if the dam is a het then only breed her to visual sires if you're going to guarantee 100% hets. Got it.

[don15681]

So.... if the dam is a het then only breed her to visual sires if you're going to guarantee 100% hets. Got it.

yes if she was never breed to anything else before breeding to the visual.

[don15681]

Genetically, how can this be? I mean, If I breed an albino, (m or f) who has both copies of the gene for albinism,(therefore making him an actual albino) to another snake whos completely normal, why WOULDNT my babies be all 100% het for albino? All of the babies get a copy of the gene for albinism from one parent, and a copy of non albinism from the other parent. Is it different with clowns? ghosts? axanthics? Im cornfused....

if I breed a visual female, I agree they will all be 100% hets. I also agree in what you're saying about a visual passing the gene. what I'm saying is how do you know for sure that the visual male passed his gene to the hatchlings and be 100%?

1. retained sperm

2. parthenogenesis this is rare, but it is more common in reptiles and insects. I know a breeder who had a virgin female normal and the first year was breed to a killerbee (super pastel spider) had a clutch of good eggs. next year was breed to a 3 gene male with super pastel being in the snake. again had good eggs. the third year it was breed to a super pastel champagne got 5 eggs and all 5 were normal females, no pastels at all. this breeder at the time had a small collection, keep very good records. yes a mistake is possible, but knowing him, parthenogenesis makes more sense.

[SquamishSerpents]

IMO bad odds in that case makes far more sense than parthenogenesis

[CD CONSTRICTORS]

It is very poor practice to attempt making 100% Hets from a female that you have bred to anything else the year before.

I have females set aside strictly for making certain Hets. I can sleep easy. I keep pics of locks and ovulation for my own insurance.

[Badgemash]

It is very poor practice to attempt making 100% Hets from a female that you have bred to anything else the year before.

I have females set aside strictly for making certain Hets. I can sleep easy. I keep pics of locks and ovulation for my own insurance.

I would generally agree with you on this, unless there was no chance of confusing the babies in the event of retained sperm (ie. the male used in the previous year was some kind of non-recessive super, and the male from the current year does not carry that gene).

[4theSNAKElady]

if I breed a visual female, I agree they will all be 100% hets. I also agree in what you're saying about a visual passing the gene. what I'm saying is how do you know for sure that the visual male passed his gene to the hatchlings and be 100%?

1. retained sperm

2. parthenogenesis this is rare, but it is more common in reptiles and insects. I know a breeder who had a virgin female normal and the first year was breed to a killerbee (super pastel spider) had a clutch of good eggs. next year was breed to a 3 gene male with super pastel being in the snake. again had good eggs. the third year it was breed to a super pastel champagne got 5 eggs and all 5 were normal females, no pastels at all. this breeder at the time had a small collection, keep very good records. yes a mistake is possible, but knowing him, parthenogenesis makes more sense.

I was just trying to keep things simple here guys..... no parthenogenesis, no poss hets, no 66%s, no retained sperm, etc... just real clean cut questions about what breeders would do/have done re: handling a genetics guarantee they made. Im also assuming that parthenogenesis is an EXTREMELY rare occurence....

sent from my incubator