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RE: Rextiles and others...

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Posted by: Rextiles at Thu Nov 18 13:38:09 2010   [ Email Message ] [ Show All Posts by Rextiles ]  
   

Hi Vinny, thanks for joining in!

So while I agree with the definitions of incomplete and co-dominance that you posted earlier (and have been harping on their use in herps for a while), they only refer to the expression of alleles at a single locus not the expression of alleles at different loci (genes).

That makes sense to me. Now I just need to try and comprehend it in terms of trying to determine what definition(s) a Double Recessive Homozygous animal would be, if one even currently exists. I don't see why such a term wouldn't exist though considering that terms are basically defined for every other kind of trait and that something like this is defintely nothing new or out of the ordinary although a bit more rare. So surely there must be a term or phrase that properly defines this blending phase for multiple Recessive trait Homo animals along the lines of how an Incomplete Dominant trait acts for Dominant traits.

So, while we would say that the anaconda allele is incompletely dominant with respect to the wild-type pattern and itself, we would not say that its co-dominant to albino because you can have albino anacondas. They are not co-dominant since different genes (loci) are responsible are each trait. Similarly, my brown hair is not co-dominant with my ability to taste bitter things because different genes are involved.

I agree with this as well. I hope I didn't say anything that could be misconstrued into thinking that I thought just the opposite, that mixing a color trait with a pattern trait should be considered a Codominant or Incomplete Dominant type of phenotype. I only referred to the blending mix of 2 Recessive color traits as acting like an Incomplete Dominant type. I believe in one of the posts I made yesterday that I stated along the lines that an Albino (color trait) Anaconda (pattern trait) would more than likely classify it as a Dihybrid type.

I'll just reiterate once again that I misspoke about saying that a Snow was an Incomplete Dominant type of trait. I should have said that it was merely acting like one and left it open to discussion.

Thanks again for your input Vinny. I believe that all of us are learning valuable insights and gaining a deeper understanding from each other in regards to comprehending this very complex topic.


-----
Troy Rexroth
Rextiles


   

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>> Next Message:  RE: Rextiles and others... - Gregg_M_Madden, Thu Nov 18 19:48:57 2010

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