I am aware the genetics are mixed code from each parent in a chimera, but phenotypic expression is not necessarily. Phenotype is what we are talking about in this situation, no? I explained my train of thought with different looking siblings being combined into a chimera, so I am not sure why you are still bringing up mixed genetic code. Am I missing something?
It could be that no one is advertising the more plain hatchlings. Here is a mix that is exactly opposite of what you have described head of a blood, pattern of a ball. http://s218.photobucket.com/user/abi...rball.jpg.html
Diploid means two chromosomes, one from each parent containing genetic code or DNA. Each chromosome is composed of two strands of DNA so that means four DNA to a set. Polyploid is having more than a single set from each parent, usually double so 4 chromosomes or 8 strands of DNA. Out of the 4 one matching pair is allowed to pair during meiosis creating essentially cloned DNA, but each chromosome pair is not from the same parent. It may be unlikely that this is possible because it is thought that homoploid hybrids are more common in animals, but not many studies have been done on hybrid genetics in animals.