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This is mainly due to inbreeding and breeding to extremes for looks and not soundness. For example, the Rhodesian Ridgeback breed standard stipulates that it must have a backwards ridge of hair along its back to be shown, when in fact this is a deformity caused by mild spina biffida. If you are planning on buying a pedigree dog, make sure it has had all relevant screenings and tests for breed specific diseases.

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13y ago
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11y ago

Because each breed has its own unique set of genes that distinguishes it from every other breed. These genes produce the "wanted" traits for that breed, including size, coat, color, shape of the head, whether the ears prick up or hang down, and so on.

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Q: Why do purebred dogs sometimes have genetic defects?
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Do mixed breed puppies have a higher risk of sickness than purebred puppies?

No, since mixed-breed dogs have wider genetic pools, they are less likely to suffer from genetic defects than purebred puppies. However, this doesn't mean that they are less likely to fall ill.


Why might mutts have fewer helth problems than purebred dogs?

pure breed dogs are more likely to get genetic defects from their parents that's why they usually have more health problems than mutts.


How do you use hybrid in a sentence?

He owns a hybrid car, it runs on gas and electricity.Here is an example sentence with the word "hybrid":Hybrid dogs make excellent pets just like purebred dogs, and they are less likely to suffer from genetic defects due to larger genetic pools.


Which animal can't hear?

Many invertebrates are deaf, with the exception of those that "sing" to one another. In addition, there are certain mammal breeds that are prone to deafness due to genetic birth defects, such as white dogs and cats, or specifically purebred dogs.


What constitutes a purebred miki?

Miki is a popular toy dog breed. A purebred Miki would be a dog who only has Miki in it's genetic make up. Often these dogs are certified by experts and will be able to demonstrate proof of their purebred status.


Do dogs with two heads exist?

sometimes they can, by genetic defect.


What small dog has the least heath problems?

Generally small dogs tend to have fewer health problems than larger dogs but they still have what tend to be genetic problems. Most purebred dogs are going to have more chance of genetic problems... if you want less chances of genetic and health problems look for a good mix that fits your lifestyle. The cross breeding tends to breed genetic issues out.


What are the known healtheist dog breeds?

It's generally accepted that mixed breeds are the healthiest dogs, mainly due to a diverse genetic background. A lot of purebred dogs are actually inbred, which causes problems.


Are dogs healthy?

Hybrid dogs are, in many cases, healthier than their purebred counterparts, because they may not have the genetic weaknesses that particular breeds have. For example, border collies are prone to hip dysplasia, but border collie cross breeds often don't have this problem. Purebred pug-nosed dogs have breathing difficulties, but if bred with longer nosed dogs, this problem is less likely to occur.


Are dogs hybrid?

Hybrid dogs are, in many cases, healthier than their purebred counterparts, because they may not have the genetic weaknesses that particular breeds have. For example, border collies are prone to hip dysplasia, but border collie cross breeds often don't have this problem. Purebred pug-nosed dogs have breathing difficulties, but if bred with longer nosed dogs, this problem is less likely to occur.


Are hybrid dogs healthy?

Hybrid dogs are, in many cases, healthier than their purebred counterparts, because they may not have the genetic weaknesses that particular breeds have. For example, border collies are prone to hip dysplasia, but border collie cross breeds often don't have this problem. Purebred pug-nosed dogs have breathing difficulties, but if bred with longer nosed dogs, this problem is less likely to occur.


What are some purebred toy dogs?

poodle