Quote:
If you're not seeing an identifiable homozygous form, then it's not incomplete dominate.
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I have seen them in homozygous form.
Lets do a small genetics lesson with incomplete co-dominant.
Lets say we take a normal snow and breed it to a normal gecko. If we believe its incomplete co-dominance, we will get roughly 1/2 the offspring will be normal and 1/2 of the offspring will be snow. The snows however will not be totally white, because there is a blending of the genes (normal and snow). Lets say we show the genotypes as RR for the normal and WW for the white snows. All the normal offspring would be considered RR and all the snow offspring would be considered from this clutch RW because those two traits blended together. Thats where the yellowness comes in the snows.
Now lets say we take those two snows from the first clutch (RW x RW) and breed them together. If you do a simple punnets square we end up roughly 25% will be RR (normal) , 50% RR (yellowy snows) and 25% WW (true white snows) . the homozygous form of the snows is the white (non yellow) ones.
We can mix up things and cross a yellowy snow (RW) with a white snow(WW). This cross will give you roughly 50% RW (yelowy snows) and 50% WW (White Snows)
You can do other punnets squares and work them out.
I have seen the "homozygous" ones.. they are brighter and more white , they stick out from the other snows.
Remember how the snows used to be graded A,B, and C? well there is how you get them. Obviously Grade A would be your homozygous form.
Line breeding involves no genes at all. You breed two boldly marked geckos together and you create more bolder marked geckos.. Same with coloration you breed the orangest geckos together to make more orange geckos.
All my breedings with my snows over the years have been consistant with the the incomplete codominant theory.