A patient, age 9, is admitted to a pediatric unit with Duchenne muscular dystrophy. When plan-ning care the nurse recalls the patient inherited this condition through a trait that is:
a. X-linked dominant.
b. X-influenced.
c. X-limited.
d. X-linked recessive.
ANS: D
Duchenne muscular dystrophy is a relatively common X-linked recessive, not dominant, disorder. While it is sex linked, it is not X-limited or X-influenced.
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