Geneticist Michael Briggs from Newcastle University in Newcastle upon Tyne, U.K., who specializes in skeletaldiseases, says it's «highly implausible» that these variants all have detrimental effects and just happened to occur together by chance.
Overview and Causes A common skeletaldisease, hip dysplasia occurs when a dog's hip joints don't develop quite right, allowing the hips to partially dislocate.