Posted by:
Adam Willich
at Thu Feb 17 11:19:11 2005 [ Email Message ] [ Show All Posts by Adam Willich ]
Oh, what a fun topic - "Hybino"
In theory what you need are 2 mutations to morph and create a new double Homozygous as seen with Ghost and Snow.
Albino – having absent or deficient melanin, we label or refer to it as "amelanistic" Genetically it is Tyrosinase-negative.
Hypomelanistic - having less black and/or brown color than a wild-type.
Based on these definitions how much of a difference would or is visible, if they did morph?
I have asked before when has this Double mutation ever taken place? And in what species? Visually how different were they? Still waiting for those answers and to learn more about this?
Genetically is seems that it should or has happened. If not why has it been so difficult to achieve?
I want to believe but am still not convinced that "Hybino" is an accurate term.
On another issue of trying to understand what is or makes an " Extreme " look at the following definitions -
Tyrosinase - an enzyme required for synthesizing melanin.
Tyrosinase-negative - an albino whose cells lack tyrosinase, producing a white and yellow/orange animal with pink eyes. A separate albino mutation from tyrosinase-positive.
Tyrosinase-positive - an albino not able to synthesize melanin, but capable of synthesizing tyrosinase, which results in lavender-brown or a greenish tint to it skin color. Also referred to as T+
Tyrosinase-positive - This is what I feel that the "Extremes" could or should be called.
I know there is much to be proven and tested and more to learn but still enjoy working with these animals for what they are. Learning from others and sharing what we do know leads to a greater interest.
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RE: Whats Up With Hybino Hondos??? - Adam Willich, Thu Feb 17 11:19:11 2005