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 DMD qus,help me  




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Author2 Posts
  #1

A 30-year-old woman whose child has Duchenne muscular dystrophy comes to the physician because of progressive muscle weakness during the past 3 years. A muscle biopsy specimen obtained from the woman shows findings typical of hemizygous muscular dystrophy. Which of the following is the most likely explanation for the findings in this patient?

A
)
Chromosomal translocation

B
)
Maternal chromosome constitution 45,X

C
)
Nondisjunction

D
)
Unfavorable lyonization




  #2

she s a manifesting heterozygote...hence unfavorable lyonizationsmiling face





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