如果再要我估下，應該會出普通虎紋草。
我岩岩唸住PM 你再講，但唸唸下又怕教錯你，所以copy番出黎討論，有咩錯等堆高手出黎插下我，改番岩佢。
Here are some information about t+ and t-.
Actually no one(as least I haven't heard of any) has done any test on Mauremys reevesii to find out the enzymes responsible for so called"t+" albino. As a result, I can't firmly tell you what morph will exactly be coming out after mixing a SPA and a t- together. However, I can at least tell you t- won't be coming out. (Maybe t+ will also come out if the t- albino you have carry some t+ genes of the same kind(I don't know.)) However, if you buy 2 t+ from me, t+ babies will definitely hatch out from the eggs. If you get 2 t-. they will also give birth to t- babies.
Correct me if I am wrong.
The following paragraphs are copied from a thread.
Don't know if this will help, but I found this
Making melanin (black) pigment starts with the amino acid tyrosine. It goes through a dozen or so chemical changes before becoming melanin. Tyrosinase is the enzyme that catalyses the first two chemical changes. One gene carries the information for making tyrosinase. If the gene changes enough, the resulting enzyme can't do its job, and no melanin gets made. The changed gene has become a tyrosinase-negative albino mutant gene.
Some animals lack melanin but have normal tyrosinase. Then the mutant gene causing the lack is called the tyrosinase-positive albino mutant gene in spite of having nothing to do with tyrosinase. A better name would be the _____-negative mutant gene, where _____ is filled with the name of the defective enzyme. Unfortunately, we don't know the name of the defective enzyme, yet.
The Dopa Test is a biochemical test that determines whether a mutant gene is tyrosinase-negative or not. Information about it is in H.B. Bechtel's book, Amphibian and Reptile Variants.
Ideally, there is one tyrosinase-negative mutant gene and one tyrosinase-positive mutant gene. Too bad the real world does not conform to that ideal model.
In leopard geckos, there are three unrelated albino mutant genes. Nobody has done the Dopa Test on any of them. Not more than one of them can be the tyrosinase-negative mutant. Possibly none is the tyrosinase-negative mutant.
Albino black rat snakes, corn snakes, and some others have been tested with the Dopa Test. But many others, including albino boa constrictors and ball pythons, have not. In boa constrictors, there are two albino mutants, Kahl albino and Sharp albino. Both are called tyrosinase-negative mutants without any evidence. Only one can be the tyrosinase-negative mutant, but which? And possibly both are tyrosinase positive.
In boa constrictors and some other snakes, any mutant gene that reduces the amount of, but does not eliminate, the black pigment is called a tyrosinase-positive albino mutant gene. This adds several more unrelated mutants to the mixture. |
發表於 2015-2-20 20:39:47
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