Posted by:
shelley7950
at Thu May 12 07:53:39 2005 [ Email Message ] [ Show All Posts by shelley7950 ]
Aha! Thanks so much, I think I finally get it...since I work at an animal shelter, it makes sense to me in terms of dogs...if you cross two purebred dogs, you get what is basically an F1 hybrid, with characterstics of both parents..If those hybrids are bred to each other, with occasional outcrosses to the purebred parent breeds, for many generations, you establish a new "breed" (the intergrade) that produce puppies that all look alike...If someone makes the original cross between the two purebred parent breeds, that offspring may LOOK just like the new breed, but in fact, is not...If you breed the hybrids, you will get a wide range of puppies, some looking like one parent, some like the other, and some like the hybrids...So it makes sense that for breeding purposes at least, you'd prefer the genetically stable intergrades, which would always give you the look you wanted...
SR
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