Thoroughbreds are an example of a type of horse that results from selective breeding. However, not all thoroughbreds have the traits that are most desired. How has the process of selective breeding increased the probability that the horse will have a desired trait? Use information from the stimulus material and your knowledge of science in your answer. In your answer, be sure to: Explain how selective breeding increases the probability that offspring will have a desired trait.

Explain why not all individual thoroughbreds may express the desired traits.