Cat conformation

Question 1

Dwarfism

Answer 1

-shortened limbs
-schondroplastic dwarfism
-short-legged condition
-gene is autosomal dominant and homozygous lethal
-dont know gene in cats
-no spinal issues/weaknesses

Question 2

tail length

Answer 2

-manx bob tail homozygous lethal
-skeletal disorder associated

-japanese bobtail
-dominant
-characteristic kinked tail

Question 3

different cat ear mutations

Answer 3

-tuffed (Maine coon)
-curled
-folded

Question 4

Scottish fold

Answer 4

-apex of the ear is bent forward because of a defect in cartilage development
-cartilage defect occurs throughout the body
-dominant inheritance
-mutation in transient receptor potential cation channel subfamily V member 4 (TRPV4) gene
-homozygote may have a crippling overgrowth of cartilage

Question 5

burmese head defect

Answer 5

-traditional head conformation of burmese cat AA becomes brachycephalic with one copy of mutation Aa
-kittens with the defect (aa) do not survive for very long in born alive
-mutation in 5.7% of population
-ALX1 gene- 4 aa deletion

Question 6

polydactyly

Answer 6

-normally 5 toes on forepaw, 4 on hind paws
-may occur on 1-4 feet but normally occurs on forepaws
-“twisty” phenotype- polydactyly with other skeletal deformities