Major changes -- "Homo" is also slang for "homosexual" so I prefer not to use "Homo" at all. I have also taken the liberty of changing "het" and "homo" to "heterozygous" and "homozygous" in this file. Slang terms are okay for conversation and run of the mill forum posts, but I think we should aim a little higher for more educational stuff. I added "wild type or normal" and added "mutant gene" to "dominant", "dominant", and "recessive". I tried to make the phrasing smoother and picked up a few spelling errors. The final version should be run through a spelling checker before posting.



Wonder what I missed.



Paul Hollander





>Terms:

>

>Mutant gene = any gene that is different from the corresponding normal gene. Not necessarily a visual mutation.



Wild type or normal = A snake that looks like most of the snakes found in the wild. The gene at each locus that is found in a snake that looks like most of the snakes found in the wild.



>Het = heterozygous = having two different genes within a gene pair. Most commonly one normal and one mutant but could be two different mutant genes.



Heterozygous (slang - het) = having two different genes within a gene pair. Most commonly one normal and one mutant gene but could be two different mutant genes.



>Homo = Homozygous = having both genes within a gene pair the same. Can be normal or mutant.



Homozygous = having both genes in a gene pair the same. Can be normal or mutant genes.



>Super = slang term commonly used for Homo dominant mutant gene pair.



Super = Slang term commonly used when a snake has a gene pair that is homozygous for either a dominant or a codominant mutant gene.



>Trait = Physical appearance that it distinguishable from normal.



Trait = A physical appearance that is distinguishable from the normal physical appearance.



>Recessive = Trait is only expressed when the gene pair is Homo for the specific mutant gene.



Recessive mutant gene = A mutant gene that has its trait expressed only when the gene pair is homozygous for the specific mutant gene. A heterozygous individual looks normal.



>Dominant = Trait is expressed when the gene pair is Het or Homo for the specific mutant gene. Het and Homo specimens are not 100% distinguishable from each other. Note, in some Dominant traits some of the specimens can be visually identified as Het or Homo.



Dominant mutant gene = A mutant gene that has its trait expressed when the gene pair is either heterozygous or homozygous for the specific mutant gene. Heterozygous and homozygous specimens are not 100% distinguishable from each other. Note, with some dominant mutants, some of the specimens can be visually identified as heterozygous or homozygous.



>Codominant = Similar to Dominant except the Homo specimen will have a 100% distinguishable appearance from a Het specimen.



Codominant mutant gene = Similar to "dominant mutant gene" except a homozygous specimen can be distinguished from a heterozygous specimen 100% of the time.



>Double Het = has two gene pairs where one gene in each pair is normal and the second gene is a mutant gene. Ie double Het for snow would have a normal gene paired with an albino gene and a normal gene paired with an anerythristic gene.



Double het = Has two gene pairs where one gene in each pair is normal and the second gene is a mutant gene. I.e., double het for snow would have a normal gene paired with an albino gene and a normal gene paired with an anerythristic gene.



>Triple Het = same as double Het except applies to three gene pairs.







>Color mutations in boas:



Any entries that are skipped are okay, as far as I know.



>Albino AKA Amelanistic) - Two independent mutant genes: both recessive - a lack of melanin (black pigmentation) Kahl and Sharp strains.



Albino (AKA Amelanistic) - Two independent mutant genes: both recessive - a lack of melanin (black pigmentation) Kahl and Sharp strains.





>Named Color mutation combinations:



Any entries that are skipped are okay, as far as I know.



>Super Sunglow - homozygous albino / heterozygous hypomelanistic



Super Sunglow - homozygous albino / homozygous hypomelanistic





>Locale Related Color Mutations:



All okay, as far as I know.





>Pattern Mutations:



I don't know enough about these to be able to contribute.

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