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Thread: Genetics....

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    BPnet Royalty OhhWatALoser's Avatar
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    Re: Genetics....

    Short answer is yes the hobby has many terms screwed up

    Quote Originally Posted by jdhutton2000 View Post
    The first one would be our labeling of dominant genes. Dominant gene would mean that anything on the same locus and the corresponding allele would be overridden by the dominant gene. We have called Spider and Pinstripe dominant genes, when in reality they may be dominant to some alleles but they are in fact incomplete dominant, hence the spinner that comes from the mixing of the two.
    When we call classify a gene we are comparing it to the wild trait allele. Dominant means the phenotype looks the same in heterozygous and homozygous form. So a pinstripe and a super pinstripe (super being another made up term for the hobby) look the same. Spider and Pinstripe are incomplete dominant to each other and could be possibly recessive to other traits. We classify only based on the wild trait allele. Since there is no evidence of a homozygous spider, we really can't classify it. I made up the term "unproven dominant" to cover these traits with unknown homozygous forms.

    Quote Originally Posted by jdhutton2000 View Post
    Also, Co-Dominance means that there will be evidence of the individual alleles present in the resulted phenotype, for example if Mojave and Cinnamon were true Co-Dom you would see part Mojave and part cinnamon on the same snake (which from study sounds a lot like paradox but I am not even going there), instead we once again see incomplete dominance because the result in most of our breeding shows a mixing of different alleles that are not distinctive of the originals.
    That is correct. The only gene I know of that could be classified as truly co-dom is scaleless head/scaleless. Everything else as far as i can see would be inc-dom.

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