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Rextiles and others....

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Posted by: CBH at Tue Nov 16 09:20:44 2010   [ Email Message ] [ Show All Posts by CBH ]  
   

"While it is true that these are all Recessive genes to the Wild Caught genotype, they are also Incomplete Dominant when mixed with each other, this is why we are getting a new color phenotype when we pair these traits together. If these genes were truly Recessive, then they would be Recessive to each other as well, that would mean that one of those genes would have to be Dominant to the other and only that Dominant trait would show through. "

I don't buy this. While I am not a geneticist and I can see your logic, you are a little off in my opinion. The reason these two mutations can be mixed to form a totally new phenotype is because they are on different loci. Both traits are present in the genotype as homozygous recessives. So, it is not incompletely dominance but rather the combination of two homozygous recessive traits at two separate loci that together create a phenotype characterized by both traits equally (or nearly so).

Hope that makes sense.

Just my 2 cents,
Chris
-----
Christopher E. Smith
Contact
Captive Bred Herps
Wildlife Research & Consulting Services, LLC


   

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