Re: Mixing recessive and dominant traits
Quote:
Originally Posted by SPJ
Here's my explanation since I will be doing this next year.
I will be breeding a pastel (dominant) to a hypo (recessive). Hopefully I will get pastel het hypos from the breeding. Pairing up a pastel het hypo with another pastel het hypo will give a clutch hopefully containing hypo pastels. Hypo pastels would show both the dominant and recessive traits.
You'd also might get a hypo super_pastel. Your chances are 1 out of 16 or 6.25% for the hypo_superpastel.
Your theoritical chances for the hypo_pastel are 1 our of 8 or 12.5% when doing a sib cross of pastel het hypo.
You'd double your chances of producing a hypo_pastel by doing the backcross technique described above. Take a Pastel het hypo offspring and breed it back to the original hypo parent. However, you cant get any super_pastel hypos from this cross.....
Another advantage of the backcross technique is that it can sometimes be used if you get a clutch consisting of only one sex.
For example....
Lets say in the parental generation you had a pastel male and crossed this to a hypo female and you got 4 eggs and all were male--you cant do a Double het sibling cross. But you could cross any of the four offspring males back to their mother and have a 1 in 4 chance of producing a hypo_pastel. Now if you had the same parents and all 4 were female then you'd just be unlucky......
This is just theory....I dont see any reason why it would be hard to backcross in ball python......but since I never actually tired it....who knows.... maybe an experienced breeder will chime in with an answer
Perhaps ball pythons are like us and dont like to "hook up" with one of their parents? But I doubt it.....
Re: Mixing recessive and dominant traits
Quote:
Originally Posted by Mendel's Balls
Perhaps ball pythons are like us and dont like to "hook up" with one of their parents?
Doesn't matter to them.
-adam
