>So, how a T positive boa should look like ?

>First of all, the phenotype should be inheritable and only expressed in it’s homozygote form, recessive genes. So, pastels, salmon, ... are not T positive.

Why recessive genes only? Are you claiming that salmon boas do not have functional tyrosinase? Snakes with either nonfunctional or missing tyrosinase are the only ones that are not tyrosinase positive, as far as I know.

I don't know whether the argument is for calling those blonde albino boas hypos or tyrosinase positive albinos. In my opinion, they could go in both categories nicely. YMMV. But then they'd be lost in the crowd. Think marketing! Think unique! Think rarity value! I'd strip the "albino" off the name and just call them blonde boas as a first step.

Paul Hollander

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I have said in a previous post that all the non T negative boas were by definition T positive, the commun pet shop one. and said than that definition was not the best ! You agred in a precedent post that we have to used real studies done on other species, to figure out.
So, the answer is simple as said before, all the different forms of T albinism identified in other species (human, mouses, ....) are all recessive. , so if now you want to say that some forms of T positive albinos are dominant, it's up to you.
Give me a genetic mutation called hypo and studied in other species and I will look at it.

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