Canine genetics is the study of the hereditary traits and characteristics of dogs. It involves understanding how genes, which are segments of DNA, influence physical features like coat color, size, and behavior. Each dog inherits genes from its parents, which determine its unique traits. Breeding practices often rely on canine genetics to produce specific qualities in puppies. For example, purebred dogs are bred to maintain certain traits, while mixed-breed dogs can exhibit a wider variety of characteristics. Genetic testing can also help identify potential health issues, allowing for better care and management of canine health.