What is a Pure-breed represented by? And why?
Technical definition of pure breed is when two individuals of idential gentotype are mated to prooduce an offspring of the same genoptype. The practice is likely to be true for producing commercially profitable animals, the breeds that are more popular as pets or perhaps farm animals for human consumption.
Please let me know if you are looking for pure breed in animals or plants, then I can explain more.
Meanwhile, I hope this helps.