Quote Originally Posted by TessadasExotics View Post
Unfortunately this is why people think that spider x spider is wrong. Because people give there opinions on the matter saying that "they think" it is a lethal combo. Now every one thinks it is a lethal combo.


On a side note to my knowledge there is no lethal genetic bobtail boxers. I have not seen any such findings. This is a rather new study(creating a genetic bob tailed boxer) and has just been started around 1996 or so. It is most commonly done by introducing Corgy's into the bloodline.
The breeding for bobtailed boxers seems to be more of an Aussie thing. Here's a link to where it's discussed.

Whatever the correct interpretation of the discordant evidence, the molecular data establish that the homozygous Corgi bob-tail is a lethal condition. The term, lethal, has an ominous ring to it. It suggests something totally undesirable. Yet, having pondered the issue at length I have to conclude that while the evidence of lethality is disappointing, it is not an ethical problem. Without any detectable ill-effects, the only undesirable feature of the bob-tail condition is that it will not breed true. There will always be a 25% expectation of long tailed pups appearing (see Fig 12 of Part 5). That we now know why this occurs simply means that, in a sense, we now know too much.
Source: http://www.steynmere.com/ARTICLES6.html found on 2nd page, after discussion.

Dog genetics is a little off the path in discussing snake genetics except in that it can illustrate how gene combinations can work. That is why I used the bobtailed boxers, and because they've done the testing to determine that the living bobtailed boxers are heterozygous for the trait.