Quote Originally Posted by JLC
So far as I am aware...there are no documented, proven cases of homozygous spiders. This lack of certainty could be due to the fact that the homozygous form doesn't look any different than the heterozygous form and therefore no one is certain which might be homozygous and have yet to conclusively prove one out by producing ALL spider offpsring. OR....the homozygous version of the morph is "fatal"...meaning some other genetic issue is connected with the gene and in its homozygous form does not allow the embryo to mature into a hatchling.

Due to fact that no visual "supers" have been produced, people have pretty much stopped trying and use their spiders for other, more exciting projects. Therefore, the opportunities to prove out a homozygous spider aren't as prevelent as one might think, given the popularity of the morph.

That is my limited understanding of spider genetics and breeding.
I haven't seen/heard/read any data of spider to spider clutches out there having a higher instance of eggs going bad to suggest that there is a "deadly" homozygous form of the spider gene. I don't think its necessarily a good thing to suggest that on a message board to new keepers with nothing, even some sliver of evidence, for that to be true.

With the sheer number of spiders and spider combos being produced, I think that if there were some deadly homozygous form, there would be some kind of buzz about it at this point in the game. All I know right now is that there are a lot of spider and spider combos being crossed, and no one mentioning a higher than normal instance of eggs going bad or death of offspring in spider breeding.

I've also seen threads with people posting repeat all-spider clutches from a spider x normal pairing...while unreliable at this point and certainly possible from a regular spider, the suggestion of the parent being a homozygous spider is certainly there.