Which of the following sets lists autosomal dominant genetic diseases in horses?

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Study for the AQHA Judges Qualifying Exam. Prepare with flashcards and multiple choice questions, each question features hints and explanations. Get ready for your exam!

Multiple Choice

Which of the following sets lists autosomal dominant genetic diseases in horses?

Explanation:
Autosomal dominant inheritance means a single copy of the mutant gene can cause the disease, and it often appears in successive generations with both sexes affected. HYPP and MH are classic examples in horses of conditions inherited in this pattern. PSSM is also described in many sources as autosomal dominant (PSSM1 involves a GYS1 mutation with dominant inheritance and variable expression). GBED and HERDA, on the other hand, are autosomal recessive diseases, which require two copies of the mutant allele to express the condition. So the set that lists diseases fitting autosomal dominant inheritance is HYPP, PSSM, and MH.

Autosomal dominant inheritance means a single copy of the mutant gene can cause the disease, and it often appears in successive generations with both sexes affected. HYPP and MH are classic examples in horses of conditions inherited in this pattern. PSSM is also described in many sources as autosomal dominant (PSSM1 involves a GYS1 mutation with dominant inheritance and variable expression). GBED and HERDA, on the other hand, are autosomal recessive diseases, which require two copies of the mutant allele to express the condition. So the set that lists diseases fitting autosomal dominant inheritance is HYPP, PSSM, and MH.

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