Interactive demoAugust 25, 2026Labrador Retriever
Hip Quality in Dogs: A Polygenic Trait in Action
An interactive Galton board showing how PennHIP distraction index (DI) breeding values arise from many genes of small effect.
Hip Dysplasia
Hip quality as a polygenic trait: how many genes of small effect combine to produce the range of PennHIP distraction index (DI) scores seen in a breed.