USMLE USMLE Exam
United States Medical Licensing Examination (Page 8 )

Updated On: 7-Feb-2026

Which of the following is not a characteristic of Krabbe's disease?

  1. Autosomal recessive condition
  2. Spasticity
  3. Nausea
  4. Optic nerve deficits

Answer(s): C



Which of the following is not a characteristic of Fabry's disease?

  1. X-linked disease
  2. Low levels of alpha-galactosidase A
  3. Profound muscular weakness
  4. Increased levels of ceramide trihexoside

Answer(s): C



Which of the following is not a characteristic of Sickle Cell Anemia?

  1. More common in African Americans
  2. Autosomal dominant
  3. Mutation in beta-globin
  4. Intense chronic pain

Answer(s): B



Which of the following is not a characteristic of the Southern blot?

  1. DNA hybridization
  2. Use of a filter and film combination
  3. Activated by antigen/antibody reactions
  4. Uses a DNA sample

Answer(s): C



Which of the following is not a characteristic of S-adenosyl-methionine?

  1. May be associated phosphocreatine
  2. Considered a rate limiting enzyme of glycolysis
  3. Aids in the transfer of methyl
  4. Byproduct of Methionine and ATP combination

Answer(s): B






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