I really was just trying to understand where you were coming from...I think I got it now...all genetic anomolies are the result of natural mutative changes within any group of plants,or,animals...none of them are engineered in anyones garage...certain combinations of two,or,more,are of course orchestrated by human influence,and,are not very likely to occur naturally,and,I certainly understand what you're saying about subspecific crosses...but,intergradation has nothing to do with why mutations occur,they can occur in Surinames,or,Peruvians...or,butterflies,for that matter. the Salmon/O.T./"hypo" trait is not the same thing as what you are trying to describe in the "like-breeds-like" examples,and,no,it's not a case of simply breeding light colored boas,to other light colored boas...based on your examples,I think you are getting confused between various multi-allelic inherited traits,for which there are certainly patterns of transmission,but,much less accurately predictable,due to the complexity of their causes,than specific anomolies,or,biochemical defects(like color mutations.)that follow Mendellian theories.there are specific genetic anomolies that are thought to occur based on numerical odds,that are somewhat universal,in that,they occur in many different species,like albinism,and,hypomelanism,etc...the fact that what we call "hypos" doesn't behave in the same way as albinism,for example,doesn't make the genetic reality of it's occurence any less valid.

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