Quote Originally Posted by Watever View Post
Thank you for your explanation ! It's really good
IDK about good, it was just the best I could come up with quick LOL. But thanks

I agree on this. But if the T- gene are not on the same loci for both species, wouldn't that mean that both parent would pass a T+ gene and a T- gene ? So if I refer to what you said before, because there is at least 1 T+ gene, the animal wouldn't be albino.

But if both T- gene, on both species, are on the same loci, then it does work
It works even if the tyr gene is on separate loci for each snake. I was trying to be clear on that but I must have muddied it. Let me try it like this. (And for the record, this is all speculative, I do not know how many chromosomes either species has nor do I know where each has their tyr gene located...)

Each species only has on locus for tyr. Say the ball tyr gene is on chromosome 15 and the burm tyr is on chromosome 7.

Chromosomes come in pairs, one half from the mother and one half from the father. So a ball will have 2 copies of tyr, one for each chromosome 15. And for the burm 2 copies of tyr, one each for chromosome 7.

Now, for the hybrid animal it will still have 2 copies of tyr but one will be on the paternally donated ball python chromosome 15 while the other will be on the maternally donated chromosome 7. And each of these chromosomes would then pair up with the chromosome from the hybrid parent (ball 15 pairs with burm 15 and ball 7 pairs with burm 7) so there are only the 2 copies of tyr in the hybrid animal. Just in two separate locations.