Referring to Fig. We are talking about only 26 gene pairs, a tiny fraction of the whole. Since genetics has not reached a point of specifics, it is only through generalizations that the knowledge can be helpful to the average breeder. It is NOT a fact that ALL pups from closely bred, good running parents will run better than their parents. We are talking about probabilities not certainties.
Probabilities only become certainties on a percentage basis over an enormous number of litters.
It is improbable that if the world lasts another million or so years that there could ever be an opportunity for the genes of Shorthairs, to assume all of their various possible combinations. We should be able to get some general information that will be helpful if we study Figure 47 . So that if you want more or less variation you know, in a general way, how to reach your goal. How any trait you many desire is more likely to come from related parents show possess the trait than from unrelated parents who possess it. This plan is also more effective in correcting defects.