Domestic Dogs: More than 190 Breeds
4. Ask students to identify the ways in which the different kinds of dogs shown differ in appearance [body size and shape; head shape; coat length, color and curliness]. Tell students that modern dogs provide an interesting model for learning genetics, because humans selected desirable dogs to breed—based on the parent dogs’ appearance or behaviors. This process over many generations, and many crosses, led to the different kinds of dog breeds.
*Note: In 2016, the American Kennel Club recognized 190 breeds, while the Westminster Kennel Club recognized 199 breeds.
Dog breeds shown above are listed below in order from left to right.
Top row (L-R): Toy poodle, English Bulldog, English Cocker Spaniel, Schipperke, Shetland Sheepdog, and Yorkshire Terrier.
Bottom row (L-R): Old English Sheepdog, Weimaraner, Spanish Water Dog, and Scottish Deerhound.
- Moreno, N. (2017) Complex Traits: Using Dogs as a Model for Modern Genetics. Baylor College of Medicine: Houston. ISBN: 978-1-994035-08-2.
- English bulldog, English cocker spaniel, Old English sheepdog, Poodle, Scottish deerhound, Shetland sheepdog, Spanish water dog, and Weimaraner © Eric Isselee. Schipperke © Bonzami Emmanuelle. Yorkshire Terrier © Vicente Varcelo Varona. Licensed for use.
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