What is a variation? Genetic variation means that biological systems – individuals and populations – are different over space. Each gene pool includes various alleles of genes There is Continuous and Discontinuouspor Jacopo Nustrini
1. What is a pure breed? A purebred dog is a dog that is a puppy of two parents that have the same species of a selected range of species.(IE: golden Labrador)
1.1. The limitation is that it is unhealthy to breed animals in a limited population because of in breeding.
1.2. Having A pure bred is appealing to humans as you know most of the time what the dog is going to be like when it grows up.