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  1. #1
    Registered User Amon Ra Reptiles's Avatar
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    Dominant, codom, incomplete Dom???

    Ok so I'm playin around with the genetics wizard and trying to figure out what to pair a pinstripe with. Anyway I paired pin x pin and got

    75% pin
    25% normal

    Can someone explain this to me? I would have thought it would be all pins. I'm still a little fuzzy on the Dom, codom, incomplete Dom thing any help is appreciated thanks all.

    On a side note I find it really funny that every time I spell codom my phone auto corrects it to condom. Hehe

  2. #2
    Ball Python Aficionado Adam Chandler's Avatar
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    Pinstripes are dominant, which means they do not have a super form, but they still only have to occupy 1 allele of the 2 (with the other being normal) to express the Pin morph.
    So when you breed 2 Pins together each the mom and the dad have a 50% chance of passing the Pin allele.

    Pin X Pin breeding odds are:
    25% of neither the mom or dad passing their Pin allele
    50% of the babies getting at least 1 Pin allele from either mom or dad
    25% chance of both mom or dad passing their Pin allele which would result in offspring that have 2 pinstripe alleles, but since the Pinstripe morph is dominate it looks the same as if it only had 1 Pinstripe allele.

    Lets say you did the same breeding with the Pastel gene, which is Co-Dom:
    in Pastel X Pastel breeding odds are:
    25% of neither the mom or dad passing their Pastel allele
    50% of the babies getting at least 1 Pastel allele from either mom or dad
    25% chance of both mom or dad passing their Pastel allele which would result in offspring that have 2 Pastel alleles, and since the Pinstripe morph is Co-Dominate it expresses the look of the Pastel Super form.

    You take that 25% chance that would have been Supers and add it to the 50% of single allele animals.
    Now for Pin X Pin 25% of the offspring would have 2 pin alleles making them better breeding stock, but since no super form expresses there is no way to tell which of the offspring got the 2 Pin alleles and who got just 1.

    Make sense?
    Last edited by Adam Chandler; 03-06-2011 at 11:01 AM.
    "We are artists using locus and alleles as our paint; the ball python as our canvas" - Colin Weaver


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  3. The Following User Says Thank You to Adam Chandler For This Useful Post:

    Alexandra V (03-06-2011)

  4. #3
    Registered User Amon Ra Reptiles's Avatar
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    Ohhhh gotcha thank you!

  5. #4
    Ball Python Aficionado Adam Chandler's Avatar
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    Also if you haven't already check out http://ball-pythons.net/forums/showt...Basic-Genetics
    JLC outdid herself with the awesome guide to reptile genetics.
    "We are artists using locus and alleles as our paint; the ball python as our canvas" - Colin Weaver


    Check out my Photoblog!

  6. #5
    BPnet Royalty OhhWatALoser's Avatar
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    Re: Dominant, codom, incomplete Dom???

    Quote Originally Posted by ScottNBecky View Post
    Ok so I'm playin around with the genetics wizard and trying to figure out what to pair a pinstripe with. Anyway I paired pin x pin and got

    75% pin
    25% normal

    Can someone explain this to me? I would have thought it would be all pins. I'm still a little fuzzy on the Dom, codom, incomplete Dom thing any help is appreciated thanks all.

    On a side note I find it really funny that every time I spell codom my phone auto corrects it to condom. Hehe
    just to add, in the snake world, we do not differentiate between co-dom and incomplete dom, we just call everything co-dom.

    also if you breed pin x pin, the 2 allele pin they were talking about above, is called a homozygous pin. the advantage to this guy, is when bred, they produce 100% pin babies. you won't be able to tell visually if it is homozygous or not, but breeding can prove it out.

    thats pretty funny about your phone, i know my friend's iphone always changes "most" to "molest"

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