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Genetics question

aquick Feb 18, 2008 05:07 PM

I recently purchased a female ball (normal); who has siblings that are spider, and was wondering if there was any chance that I could produce spider offspring if I crossed her with a spider male...I'm not sure if this morph is co-dominant or incompletely dominant; hence why I'm uncertain about this cross. Any help would be great.

Replies (2)

EmberBall Feb 18, 2008 05:41 PM

If you breed a normal, Spider sibling or not, to a Spider, you get approx. 50% Spiders. A Spider sibling will not produce Spiders unless it is bred to a Spider, and it has nothing to do with the Sibling, only the Visual Spider.

Dave

Paul Hollander Feb 18, 2008 06:30 PM

>I'm not sure if this morph is co-dominant or incompletely dominant ....

For your purpose (and for general breeding purposes), it does not matter which the morph is. The important part is that the spider mutant gene is not recessive to the normal gene. As the snake looks normal, it does not have the spider gene. The only way it can have spider babies is to mate it to a spider ball python. This is true whether the normal ball python is a spider sibling or totally unrelated.

Paul Hollander

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