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Q547

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1. A 20-year-old develops weakness accompanied by difficulty in relaxation that is most pronounced in the hands and feet. Muscle biopsy demonstrates prominent ring fibers, centrally located nuclei, chains of nuclei, and disorganized sarcoplasmic masses. This condition been associated with a mutation on which of the following chromosomes?
A.
B.
C.
D.
E.


 

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