Molecular Biology/Genetics USMLE Step 1 Practice Question
A 10-year-old female is admitted to the hospital because of a recurrent neurologic disorder. Her right arm and leg have become limp, and she is found to have lactic acidosis. Two months earlier, the patient had a grand mal seizure followed by cortical blindness with slow resolution. Muscle biopsy revealed ragged red muscle fibers and abnormal mitochondria. Which of the following pedigrees is most likely related to her disease?
Answer choices
- AC
- BD
- CE
- DBCorrect answer
- EA
- FF
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