Calico's - Any lethal combos to stay away from?

[C&H Exotic Morphs]

have you ever seen a baby carrying 2 calico genes or 2 spider genes? you haven't because they don't live. they usually don't make it far enough into the incubation to even be seen. eggs go bad in clutches all the time even if there isn't a super. when it does happen because a super spider or calico is in them early on in incubation it's chalked up to be "just another bad egg." theres been discussions on it before with people that are much more knowledgable in genetics than i'll ever be.. let me see what i can find.

Yes eggs do go bad at times and in any pairing possible.
But if it were the case in these situations don't you think it would be more often and more regular?
Statistically speaking over the long haul 25% of the eggs should go bad from these pairings and it would become more obvious than just a random egg going bad here or there.

the only example i could find on short notice from my phone at work. post #22 specifically, but the rest of the thread is very interesting too.
http://www.reptileradio.net/ball-pyt...r-results.html

So 1 example and you are set? That's all the evidence you need?
Not very scientific in my opinion.

and i never meant breeding calico to calico resulted in all lethal babies. i meant the super calico was lethal. as well as the super spider.

Until you posted about Calico x Calico supposedly being lethal I have never heard it before. As far as I can remember I have never heard of the Calico gene being brought up in any lethal combo situation.


Here's the lethal gene video from NERD where he briefly talks about Spider x Spider not being lethal.
http://www.youtube.com/watch?v=-fhnR5YdGdI


We know very little about the overall genetic makeup of these animals besides the phenotypes. So we can't come to any absolute conclusions on any of this. Just different hypothesis from what we observe.