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“Biscuit”
Mountain Top Biscuit

Beagle

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Genetic Breed Result

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Beagle

The Beagle is a scent hound and a great family pet. They are known for being affectionate and having loud voices.

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Health Summary

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Biscuit is at increased risk for two genetic health conditions.

And inherited one variant that you should learn more about.

Factor VII Deficiency

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Biscuit inherited both copies of the variant we tested

How to interpret this result

Biscuit has two copies of a variant in the F7 gene and is at risk for being Factor VII deficient. This variant was first observed in research colonies of Beagles in North America and Europe but has also been observed in the pet population. You may notice that Biscuit has mild to moderate bleeding tendencies, or he or she might appear completely normal. However, your veterinarian must be informed that Biscuit has Factor VII deficiency as affected dogs are at risk for post-surgical hemorrhage.

What is Factor VII Deficiency?

Factor VII deficiency is a type of coagulopathy, a disorder of blood clotting. It is characterized by mild to moderate abnormal bleeding (generally less severe than that caused by deficiencies in other clotting factors such as Factors VIII or IX). Some dogs with this condition will show no clinical signs.

Intervertebral Disc Disease (Type I)

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Biscuit inherited both copies of the variant we tested

How to interpret this result

Biscuit has two copies of an FGF4 retrogene on chromosome 12. In some breeds such as Beagles, Cocker Spaniels, and Dachshunds (among others) this variant is found in nearly all dogs. While those breeds are known to have an elevated risk of IVDD, many dogs in those breeds never develop IVDD. For mixed breed dogs and purebreds of other breeds where this variant is not as common, risk for Type I IVDD is greater for individuals with this variant than for similar dogs.

What is Intervertebral Disc Disease (Type I)?

Type I Intervertebral Disc Disease (IVDD) is a back/spine issue that refers to a health condition affecting the discs that act as cushions between vertebrae. With Type I IVDD, affected dogs can have a disc event where it ruptures or herniates towards the spinal cord. This pressure on the spinal cord causes neurologic signs which can range from a wobbly gait to impairment of movement. Chondrodystrophy (CDDY) refers to the relative proportion between a dog’s legs and body, wherein the legs are shorter and the body longer. There are multiple different variants that can cause a markedly chondrodystrophic appearance as observed in Dachshunds and Corgis. However, this particular variant is the only one known to also increase the risk for IVDD.

ALT Activity

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Biscuit inherited one copy of the variant we tested

Why is this important to your vet?

Biscuit has one copy of a variant associated with reduced ALT activity as measured on veterinary blood chemistry panels. Please inform your veterinarian that Biscuit has this genotype, as ALT is often used as an indicator of liver health and Biscuit is likely to have a lower than average resting ALT activity. As such, an increase in Biscuit’s ALT activity could be evidence of liver damage, even if it is within normal limits by standard ALT reference ranges.

What is ALT Activity?

Alanine aminotransferase (ALT) is a clinical tool that can be used by veterinarians to better monitor liver health. This result is not associated with liver disease. ALT is one of several values veterinarians measure on routine blood work to evaluate the liver. It is a naturally occurring enzyme located in liver cells that helps break down protein. When the liver is damaged or inflamed, ALT is released into the bloodstream.

Breed-Relevant Genetic Conditions

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Pyruvate Kinase Deficiency (PKLR Exon 7, Beagle Variant)

Identified in Beagles

Progressive Retinal Atrophy, crd4/cord1 (RPGRIP1)

Identified in Beagles

Primary Open Angle Glaucoma (ADAMTS10 Exon 17, Beagle Variant)

Identified in Beagles

Congenital Stationary Night Blindness (LRIT3, Beagle Variant)

Identified in Beagles

Neonatal Cerebellar Cortical Degeneration (SPTBN2, Beagle Variant)

Identified in Beagles

Hypocatalasia, Acatalasemia (CAT)

Identified in Beagles

Cobalamin Malabsorption (CUBN Exon 8, Beagle Variant)

Identified in Beagles

Musladin-Lueke Syndrome, MLS (ADAMTSL2)

Identified in Beagles

Osteogenesis Imperfecta (COL1A2, Beagle Variant)

Identified in Beagles

Additional Genetic Conditions

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Through Biscuit’s mitochondrial DNA we can trace her mother’s ancestry back to where dogs and people first became friends. This map helps you visualize the routes that her ancestors took to your home. Their story is described below the map.

Haplogroup

B1

Haplotype

B84

Map

B1

Mountain Top Biscuit’s Haplogroup

B1 is the second most common maternal lineage in breeds of European or American origin. It is the female line of the majority of Golden Retrievers, Basset Hounds, and Shih Tzus, and about half of Beagles, Pekingese and Toy Poodles. This lineage is also somewhat common among village dogs that carry distinct ancestry from these breeds. We know this is a result of B1 dogs being common amongst the European dogs that their conquering owners brought around the world, because nowhere on earth is it a very common lineage in village dogs. It even enables us to trace the path of (human) colonization: Because most Bichons are B1 and Bichons are popular in Spanish culture, B1 is now fairly common among village dogs in Latin America.

B84

Mountain Top Biscuit’s Haplotype

Part of the large B1 haplogroup, this haplotype occurs most frequently in Golden Retrievers, Beagles, and Staffordshire Terriers.

The B1 haplogroup can be found in village dogs like the Peruvian Village Dog, pictured above.

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The Paternal Haplotype reveals a dog’s deep ancestral lineage, stretching back thousands of years to the original domestication of dogs.

Are you looking for information on the breeds that Biscuit inherited from her mom and dad? Check out her breed breakdown.

Paternal Haplotype is determined by looking at a dog’s Y-chromosome—but not all dogs have Y-chromosomes!

Why can’t we show Paternal Haplotype results for female dogs?

All dogs have two sex chromosomes. Female dogs have two X-chromosomes (XX) and male dogs have one X-chromosome and one Y-chromosome (XY). When having offspring, female (XX) dogs always pass an X-chromosome to their puppy. Male (XY) dogs can pass either an X or a Y-chromosome—if the puppy receives an X-chromosome from its father then it will be a female (XX) puppy and if it receives a Y-chromosome then it will be a male (XY) puppy. As you can see, Y-chromosomes are passed down from a male dog only to its male offspring.

Since Biscuit is a female (XX) dog, she has no Y-chromosome for us to analyze and determine a paternal haplotype.

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