2.  Trait: a specific characteristic (color, hair, etc.)  Heterozygous: two different alleles; one dominant, one recessive  Homozygous: two alleles that are the same; homozygous dominant or recessive  Hybrid: offspring of crosses between parents with different traits  Incomplete Dominance: when an allele isn’t completely dominant over another  Codominance: when both alleles are seen

3.  Even with purebred dogs, incomplete dominance is shown, as seen in the next slide, when one trait, in this case color, isn’t completely dominant.

5.  If a dog isn’t a purebred it’s a hybrid. A Shih-tzu bred with a Yorkie will produce Shorkies, a hybrid. Also, a Poodle and a Yorkie will give you a Yorkie Poo.

6.  Looking at hybrids, we can see codominance. Both parents’ genes can be seen. Hair: She has coarse hair that doesn’t have to be groomed very often Ears: She has Chihuahua ears that stick up when she’s excited Face: She has the poodle face, with a long-ish nose and large eyes Body: She has the poodle build

7. Face: Her face has a “squished in” appearance, which is the Shih Tzu face Tail: Her tail curves up, like the Shih Tzu Build: She has the stocky, short Shih Tzu build Hair: She has fluffy hair, like a Pomeranian Ears: Her ears are floppy and large, like Pomeranians

8. http://www.yorkietalk.com/forums/breeder-talk/191831-recessive-yorkie.html

9.  http://www.prouxchihuahuas.com/id61.html http://www.prouxchihuahuas.com/id61.html SHORTlong SHORT SHORT/SHORTSHORT/long long SHORT/longLong/long long SHORT SHORT/long long long/longLong/long

10.  All pictures: Dogz by Design  www.dogzbydesign.com www.dogzbydesign.com  If you ever want to buy small house dog, let us know!  Prentice Hall: Biology science book  http://www.yorkietalk.com/forums/bree der-talk/191831-recessive-yorkie.html  http://www.prouxchihuahuas.com/id61. html