Progressive Retinal Atrophy (CNGA1-PRA)

CNGA1-PRA is inherited as an autosomal recessive disease in Shelties which means that dogs will only develop this form of PRA when they inherit two copies of mutant DNA, one from each parent. Carriers of only one copy of the mutation will not develop the disease.

Possible Test Results :

• Clear
• Carrier
• Affected
• Hereditary Clear
• Hereditary Carrier
• Hereditary Affected

Progressive Retinal Atrophy (CNGA1-PRA) is a recommended test for the following breeds :

• Shetland Sheepdog